Home / 5,999.75-8,279.70-3,609.78

Finding the Fourth Proportional to 5,999.75, 8,279.70 and 3,609.78

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Solution

The fourth proportional to 5,999.75, 8,279.70 and 3,609.78 is: 4,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,999.75 : 8,279.70 = 3,609.78 : x
  2. Step 2: Convert to fraction form
    5,999.75/8,279.70 = 3,609.78/x
  3. Step 3: Cross multiply
    5,999.75x = 8,279.70 × 3,609.78
  4. Step 4: Simplify right side
    5,999.75x = 29,887,895.47
  5. Step 5: Solve for x
    x = 29,887,895.47/5,999.75
  6. Step 6: Final answer
    x = 4,981.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.