Home / 7,279.24-10,914.84-3,380.20

Finding the Fourth Proportional to 7,279.24, 10,914.84 and 3,380.20

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Solution

The fourth proportional to 7,279.24, 10,914.84 and 3,380.20 is: 5,068.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.24 : 10,914.84 = 3,380.20 : x
  2. Step 2: Convert to fraction form
    7,279.24/10,914.84 = 3,380.20/x
  3. Step 3: Cross multiply
    7,279.24x = 10,914.84 × 3,380.20
  4. Step 4: Simplify right side
    7,279.24x = 36,894,342.17
  5. Step 5: Solve for x
    x = 36,894,342.17/7,279.24
  6. Step 6: Final answer
    x = 5,068.43

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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.