Home / 5,279.59-7,921.68-2,508.22

Finding the Fourth Proportional to 5,279.59, 7,921.68 and 2,508.22

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Solution

The fourth proportional to 5,279.59, 7,921.68 and 2,508.22 is: 3,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.59 : 7,921.68 = 2,508.22 : x
  2. Step 2: Convert to fraction form
    5,279.59/7,921.68 = 2,508.22/x
  3. Step 3: Cross multiply
    5,279.59x = 7,921.68 × 2,508.22
  4. Step 4: Simplify right side
    5,279.59x = 19,869,316.21
  5. Step 5: Solve for x
    x = 19,869,316.21/5,279.59
  6. Step 6: Final answer
    x = 3,763.42

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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.