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Finding the Fourth Proportional to 5,999.90, 8,999.85 and 4,747.10

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Solution

The fourth proportional to 5,999.90, 8,999.85 and 4,747.10 is: 7,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,999.90 : 8,999.85 = 4,747.10 : x
  2. Step 2: Convert to fraction form
    5,999.90/8,999.85 = 4,747.10/x
  3. Step 3: Cross multiply
    5,999.90x = 8,999.85 × 4,747.10
  4. Step 4: Simplify right side
    5,999.90x = 42,723,187.94
  5. Step 5: Solve for x
    x = 42,723,187.94/5,999.90
  6. Step 6: Final answer
    x = 7,120.65

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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.