Home / 3,802.11-5,249.09-2,898.76

Finding the Fourth Proportional to 3,802.11, 5,249.09 and 2,898.76

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Solution

The fourth proportional to 3,802.11, 5,249.09 and 2,898.76 is: 4,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.11 : 5,249.09 = 2,898.76 : x
  2. Step 2: Convert to fraction form
    3,802.11/5,249.09 = 2,898.76/x
  3. Step 3: Cross multiply
    3,802.11x = 5,249.09 × 2,898.76
  4. Step 4: Simplify right side
    3,802.11x = 15,215,852.13
  5. Step 5: Solve for x
    x = 15,215,852.13/3,802.11
  6. Step 6: Final answer
    x = 4,001.95

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Half scale
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Double scale
Find fourth proportional to 3,803.11, 5,250.47 and 2,899.76
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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.