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Finding the Fourth Proportional to 5,649.90, 8,475.34 and 1,489.88

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Solution

The fourth proportional to 5,649.90, 8,475.34 and 1,489.88 is: 2,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.90 : 8,475.34 = 1,489.88 : x
  2. Step 2: Convert to fraction form
    5,649.90/8,475.34 = 1,489.88/x
  3. Step 3: Cross multiply
    5,649.90x = 8,475.34 × 1,489.88
  4. Step 4: Simplify right side
    5,649.90x = 12,627,239.56
  5. Step 5: Solve for x
    x = 12,627,239.56/5,649.90
  6. Step 6: Final answer
    x = 2,234.95

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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.