Home / 3,719.20-5,132.32-2,148.16

Finding the Fourth Proportional to 3,719.20, 5,132.32 and 2,148.16

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Solution

The fourth proportional to 3,719.20, 5,132.32 and 2,148.16 is: 2,964.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.20 : 5,132.32 = 2,148.16 : x
  2. Step 2: Convert to fraction form
    3,719.20/5,132.32 = 2,148.16/x
  3. Step 3: Cross multiply
    3,719.20x = 5,132.32 × 2,148.16
  4. Step 4: Simplify right side
    3,719.20x = 11,025,044.53
  5. Step 5: Solve for x
    x = 11,025,044.53/3,719.20
  6. Step 6: Final answer
    x = 2,964.36

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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.