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Finding the Fourth Proportional to 5,778.72, 8,669.92 and 1,885.92

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Solution

The fourth proportional to 5,778.72, 8,669.92 and 1,885.92 is: 2,829.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.72 : 8,669.92 = 1,885.92 : x
  2. Step 2: Convert to fraction form
    5,778.72/8,669.92 = 1,885.92/x
  3. Step 3: Cross multiply
    5,778.72x = 8,669.92 × 1,885.92
  4. Step 4: Simplify right side
    5,778.72x = 16,350,775.53
  5. Step 5: Solve for x
    x = 16,350,775.53/5,778.72
  6. Step 6: Final answer
    x = 2,829.48

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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.