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Finding the Fourth Proportional to 5,778.88, 8,668.20 and 3,699.88

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Solution

The fourth proportional to 5,778.88, 8,668.20 and 3,699.88 is: 5,549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.88 : 8,668.20 = 3,699.88 : x
  2. Step 2: Convert to fraction form
    5,778.88/8,668.20 = 3,699.88/x
  3. Step 3: Cross multiply
    5,778.88x = 8,668.20 × 3,699.88
  4. Step 4: Simplify right side
    5,778.88x = 32,071,299.82
  5. Step 5: Solve for x
    x = 32,071,299.82/5,778.88
  6. Step 6: Final answer
    x = 5,549.74

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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.