Home / 5,279.14-7,286.42-3,042.30

Finding the Fourth Proportional to 5,279.14, 7,286.42 and 3,042.30

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Solution

The fourth proportional to 5,279.14, 7,286.42 and 3,042.30 is: 4,199.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.14 : 7,286.42 = 3,042.30 : x
  2. Step 2: Convert to fraction form
    5,279.14/7,286.42 = 3,042.30/x
  3. Step 3: Cross multiply
    5,279.14x = 7,286.42 × 3,042.30
  4. Step 4: Simplify right side
    5,279.14x = 22,167,475.57
  5. Step 5: Solve for x
    x = 22,167,475.57/5,279.14
  6. Step 6: Final answer
    x = 4,199.07

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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.