Home / 5,279.50-7,283.84-3,153.56

Finding the Fourth Proportional to 5,279.50, 7,283.84 and 3,153.56

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Solution

The fourth proportional to 5,279.50, 7,283.84 and 3,153.56 is: 4,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.50 : 7,283.84 = 3,153.56 : x
  2. Step 2: Convert to fraction form
    5,279.50/7,283.84 = 3,153.56/x
  3. Step 3: Cross multiply
    5,279.50x = 7,283.84 × 3,153.56
  4. Step 4: Simplify right side
    5,279.50x = 22,969,974.28
  5. Step 5: Solve for x
    x = 22,969,974.28/5,279.50
  6. Step 6: Final answer
    x = 4,350.78

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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.