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Finding the Fourth Proportional to 3,802.76, 5,247.82 and 2,124.23

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Solution

The fourth proportional to 3,802.76, 5,247.82 and 2,124.23 is: 2,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.76 : 5,247.82 = 2,124.23 : x
  2. Step 2: Convert to fraction form
    3,802.76/5,247.82 = 2,124.23/x
  3. Step 3: Cross multiply
    3,802.76x = 5,247.82 × 2,124.23
  4. Step 4: Simplify right side
    3,802.76x = 11,147,576.68
  5. Step 5: Solve for x
    x = 11,147,576.68/3,802.76
  6. Step 6: Final answer
    x = 2,931.44

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Find fourth proportional to 1,901.38, 2,623.91 and 1,062.12
Half scale
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Double scale
Find fourth proportional to 3,803.76, 5,249.20 and 2,125.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.