Home / 5,241.57-7,864.25-2,642.55

Finding the Fourth Proportional to 5,241.57, 7,864.25 and 2,642.55

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Solution

The fourth proportional to 5,241.57, 7,864.25 and 2,642.55 is: 3,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,241.57 : 7,864.25 = 2,642.55 : x
  2. Step 2: Convert to fraction form
    5,241.57/7,864.25 = 2,642.55/x
  3. Step 3: Cross multiply
    5,241.57x = 7,864.25 × 2,642.55
  4. Step 4: Simplify right side
    5,241.57x = 20,781,660.62
  5. Step 5: Solve for x
    x = 20,781,660.62/5,241.57
  6. Step 6: Final answer
    x = 3,964.78

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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.