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Finding the Fourth Proportional to 6,129.92, 9,149.52 and 5,683.84

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Solution

The fourth proportional to 6,129.92, 9,149.52 and 5,683.84 is: 8,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.92 : 9,149.52 = 5,683.84 : x
  2. Step 2: Convert to fraction form
    6,129.92/9,149.52 = 5,683.84/x
  3. Step 3: Cross multiply
    6,129.92x = 9,149.52 × 5,683.84
  4. Step 4: Simplify right side
    6,129.92x = 52,004,407.76
  5. Step 5: Solve for x
    x = 52,004,407.76/6,129.92
  6. Step 6: Final answer
    x = 8,483.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.