Home / 3,732.12-5,151.24-2,891.16

Finding the Fourth Proportional to 3,732.12, 5,151.24 and 2,891.16

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Solution

The fourth proportional to 3,732.12, 5,151.24 and 2,891.16 is: 3,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,732.12 : 5,151.24 = 2,891.16 : x
  2. Step 2: Convert to fraction form
    3,732.12/5,151.24 = 2,891.16/x
  3. Step 3: Cross multiply
    3,732.12x = 5,151.24 × 2,891.16
  4. Step 4: Simplify right side
    3,732.12x = 14,893,059.04
  5. Step 5: Solve for x
    x = 14,893,059.04/3,732.12
  6. Step 6: Final answer
    x = 3,990.51

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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.