Home / 4,742.73-7,115.40-2,279.61

Finding the Fourth Proportional to 4,742.73, 7,115.40 and 2,279.61

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Solution

The fourth proportional to 4,742.73, 7,115.40 and 2,279.61 is: 3,420.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.73 : 7,115.40 = 2,279.61 : x
  2. Step 2: Convert to fraction form
    4,742.73/7,115.40 = 2,279.61/x
  3. Step 3: Cross multiply
    4,742.73x = 7,115.40 × 2,279.61
  4. Step 4: Simplify right side
    4,742.73x = 16,220,336.99
  5. Step 5: Solve for x
    x = 16,220,336.99/4,742.73
  6. Step 6: Final answer
    x = 3,420.04

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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.