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Finding the Fourth Proportional to 2,679.52, 4,019.28 and 2,508.64

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Solution

The fourth proportional to 2,679.52, 4,019.28 and 2,508.64 is: 3,762.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.52 : 4,019.28 = 2,508.64 : x
  2. Step 2: Convert to fraction form
    2,679.52/4,019.28 = 2,508.64/x
  3. Step 3: Cross multiply
    2,679.52x = 4,019.28 × 2,508.64
  4. Step 4: Simplify right side
    2,679.52x = 10,082,926.58
  5. Step 5: Solve for x
    x = 10,082,926.58/2,679.52
  6. Step 6: Final answer
    x = 3,762.96

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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.