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Finding the Fourth Proportional to 5,000.36, 7,494.78 and 2,687

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Solution

The fourth proportional to 5,000.36, 7,494.78 and 2,687 is: 4,027.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,000.36 : 7,494.78 = 2,687 : x
  2. Step 2: Convert to fraction form
    5,000.36/7,494.78 = 2,687/x
  3. Step 3: Cross multiply
    5,000.36x = 7,494.78 × 2,687
  4. Step 4: Simplify right side
    5,000.36x = 20,138,473.86
  5. Step 5: Solve for x
    x = 20,138,473.86/5,000.36
  6. Step 6: Final answer
    x = 4,027.40

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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.