Home / 3,972.90-5,470.14-3,374.16

Finding the Fourth Proportional to 3,972.90, 5,470.14 and 3,374.16

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Solution

The fourth proportional to 3,972.90, 5,470.14 and 3,374.16 is: 4,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.90 : 5,470.14 = 3,374.16 : x
  2. Step 2: Convert to fraction form
    3,972.90/5,470.14 = 3,374.16/x
  3. Step 3: Cross multiply
    3,972.90x = 5,470.14 × 3,374.16
  4. Step 4: Simplify right side
    3,972.90x = 18,457,127.58
  5. Step 5: Solve for x
    x = 18,457,127.58/3,972.90
  6. Step 6: Final answer
    x = 4,645.76

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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.