Home / 2,480.38-3,717.80-1,248.86

Finding the Fourth Proportional to 2,480.38, 3,717.80 and 1,248.86

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Solution

The fourth proportional to 2,480.38, 3,717.80 and 1,248.86 is: 1,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.38 : 3,717.80 = 1,248.86 : x
  2. Step 2: Convert to fraction form
    2,480.38/3,717.80 = 1,248.86/x
  3. Step 3: Cross multiply
    2,480.38x = 3,717.80 × 1,248.86
  4. Step 4: Simplify right side
    2,480.38x = 4,643,011.71
  5. Step 5: Solve for x
    x = 4,643,011.71/2,480.38
  6. Step 6: Final answer
    x = 1,871.90

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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.