Home / 7,279.56-10,921.68-3,386.52

Finding the Fourth Proportional to 7,279.56, 10,921.68 and 3,386.52

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Solution

The fourth proportional to 7,279.56, 10,921.68 and 3,386.52 is: 5,080.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.56 : 10,921.68 = 3,386.52 : x
  2. Step 2: Convert to fraction form
    7,279.56/10,921.68 = 3,386.52/x
  3. Step 3: Cross multiply
    7,279.56x = 10,921.68 × 3,386.52
  4. Step 4: Simplify right side
    7,279.56x = 36,986,487.75
  5. Step 5: Solve for x
    x = 36,986,487.75/7,279.56
  6. Step 6: Final answer
    x = 5,080.87

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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.