Home / 5,385.23-8,077.83-1,489.63

Finding the Fourth Proportional to 5,385.23, 8,077.83 and 1,489.63

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Solution

The fourth proportional to 5,385.23, 8,077.83 and 1,489.63 is: 2,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.23 : 8,077.83 = 1,489.63 : x
  2. Step 2: Convert to fraction form
    5,385.23/8,077.83 = 1,489.63/x
  3. Step 3: Cross multiply
    5,385.23x = 8,077.83 × 1,489.63
  4. Step 4: Simplify right side
    5,385.23x = 12,032,977.90
  5. Step 5: Solve for x
    x = 12,032,977.90/5,385.23
  6. Step 6: Final answer
    x = 2,234.44

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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.