Home / 3,937.28-5,424-2,693.12

Finding the Fourth Proportional to 3,937.28, 5,424 and 2,693.12

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Solution

The fourth proportional to 3,937.28, 5,424 and 2,693.12 is: 3,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.28 : 5,424 = 2,693.12 : x
  2. Step 2: Convert to fraction form
    3,937.28/5,424 = 2,693.12/x
  3. Step 3: Cross multiply
    3,937.28x = 5,424 × 2,693.12
  4. Step 4: Simplify right side
    3,937.28x = 14,607,482.88
  5. Step 5: Solve for x
    x = 14,607,482.88/3,937.28
  6. Step 6: Final answer
    x = 3,710.04

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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.