Home / 7,429.92-11,149.33-2,749.13

Finding the Fourth Proportional to 7,429.92, 11,149.33 and 2,749.13

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Solution

The fourth proportional to 7,429.92, 11,149.33 and 2,749.13 is: 4,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.92 : 11,149.33 = 2,749.13 : x
  2. Step 2: Convert to fraction form
    7,429.92/11,149.33 = 2,749.13/x
  3. Step 3: Cross multiply
    7,429.92x = 11,149.33 × 2,749.13
  4. Step 4: Simplify right side
    7,429.92x = 30,650,957.58
  5. Step 5: Solve for x
    x = 30,650,957.58/7,429.92
  6. Step 6: Final answer
    x = 4,125.34

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1.5x scale

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.