Home / 10,345.22-15,520.25-2,949.79

Finding the Fourth Proportional to 10,345.22, 15,520.25 and 2,949.79

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Solution

The fourth proportional to 10,345.22, 15,520.25 and 2,949.79 is: 4,425.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.22 : 15,520.25 = 2,949.79 : x
  2. Step 2: Convert to fraction form
    10,345.22/15,520.25 = 2,949.79/x
  3. Step 3: Cross multiply
    10,345.22x = 15,520.25 × 2,949.79
  4. Step 4: Simplify right side
    10,345.22x = 45,781,446.82
  5. Step 5: Solve for x
    x = 45,781,446.82/10,345.22
  6. Step 6: Final answer
    x = 4,425.37

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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.