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Finding the Fourth Proportional to 5,679.62, 8,519.44 and 1,575.62

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Solution

The fourth proportional to 5,679.62, 8,519.44 and 1,575.62 is: 2,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.62 : 8,519.44 = 1,575.62 : x
  2. Step 2: Convert to fraction form
    5,679.62/8,519.44 = 1,575.62/x
  3. Step 3: Cross multiply
    5,679.62x = 8,519.44 × 1,575.62
  4. Step 4: Simplify right side
    5,679.62x = 13,423,400.05
  5. Step 5: Solve for x
    x = 13,423,400.05/5,679.62
  6. Step 6: Final answer
    x = 2,363.43

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Similar ratio
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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.