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Finding the Fourth Proportional to 5,279.53, 7,919.12 and 2,508.19

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Solution

The fourth proportional to 5,279.53, 7,919.12 and 2,508.19 is: 3,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.53 : 7,919.12 = 2,508.19 : x
  2. Step 2: Convert to fraction form
    5,279.53/7,919.12 = 2,508.19/x
  3. Step 3: Cross multiply
    5,279.53x = 7,919.12 × 2,508.19
  4. Step 4: Simplify right side
    5,279.53x = 19,862,657.59
  5. Step 5: Solve for x
    x = 19,862,657.59/5,279.53
  6. Step 6: Final answer
    x = 3,762.20

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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.