Home / 2,479.13-3,715.92-1,247.61

Finding the Fourth Proportional to 2,479.13, 3,715.92 and 1,247.61

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Solution

The fourth proportional to 2,479.13, 3,715.92 and 1,247.61 is: 1,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.13 : 3,715.92 = 1,247.61 : x
  2. Step 2: Convert to fraction form
    2,479.13/3,715.92 = 1,247.61/x
  3. Step 3: Cross multiply
    2,479.13x = 3,715.92 × 1,247.61
  4. Step 4: Simplify right side
    2,479.13x = 4,636,018.95
  5. Step 5: Solve for x
    x = 4,636,018.95/2,479.13
  6. Step 6: Final answer
    x = 1,870.02

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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.