Home / 5,385.32-8,077.99-1,489.74

Finding the Fourth Proportional to 5,385.32, 8,077.99 and 1,489.74

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Solution

The fourth proportional to 5,385.32, 8,077.99 and 1,489.74 is: 2,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.32 : 8,077.99 = 1,489.74 : x
  2. Step 2: Convert to fraction form
    5,385.32/8,077.99 = 1,489.74/x
  3. Step 3: Cross multiply
    5,385.32x = 8,077.99 × 1,489.74
  4. Step 4: Simplify right side
    5,385.32x = 12,034,104.82
  5. Step 5: Solve for x
    x = 12,034,104.82/5,385.32
  6. Step 6: Final answer
    x = 2,234.61

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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.