Home / 5,649.50-8,474.13-1,489.78

Finding the Fourth Proportional to 5,649.50, 8,474.13 and 1,489.78

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Solution

The fourth proportional to 5,649.50, 8,474.13 and 1,489.78 is: 2,234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,649.50 : 8,474.13 = 1,489.78 : x
  2. Step 2: Convert to fraction form
    5,649.50/8,474.13 = 1,489.78/x
  3. Step 3: Cross multiply
    5,649.50x = 8,474.13 × 1,489.78
  4. Step 4: Simplify right side
    5,649.50x = 12,624,589.39
  5. Step 5: Solve for x
    x = 12,624,589.39/5,649.50
  6. Step 6: Final answer
    x = 2,234.64

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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.