Home / 1,472.32-2,208.48-1,439.92

Finding the Fourth Proportional to 1,472.32, 2,208.48 and 1,439.92

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Solution

The fourth proportional to 1,472.32, 2,208.48 and 1,439.92 is: 2,159.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.32 : 2,208.48 = 1,439.92 : x
  2. Step 2: Convert to fraction form
    1,472.32/2,208.48 = 1,439.92/x
  3. Step 3: Cross multiply
    1,472.32x = 2,208.48 × 1,439.92
  4. Step 4: Simplify right side
    1,472.32x = 3,180,034.52
  5. Step 5: Solve for x
    x = 3,180,034.52/1,472.32
  6. Step 6: Final answer
    x = 2,159.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.