Home / 3,509.22-4,843.62-2,165.34

Finding the Fourth Proportional to 3,509.22, 4,843.62 and 2,165.34

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Solution

The fourth proportional to 3,509.22, 4,843.62 and 2,165.34 is: 2,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.22 : 4,843.62 = 2,165.34 : x
  2. Step 2: Convert to fraction form
    3,509.22/4,843.62 = 2,165.34/x
  3. Step 3: Cross multiply
    3,509.22x = 4,843.62 × 2,165.34
  4. Step 4: Simplify right side
    3,509.22x = 10,488,084.13
  5. Step 5: Solve for x
    x = 10,488,084.13/3,509.22
  6. Step 6: Final answer
    x = 2,988.72

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Half scale
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Double scale
Find fourth proportional to 3,510.22, 4,845 and 2,166.34
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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.