Home / 3,988.60-5,974.80-2,522.56

Finding the Fourth Proportional to 3,988.60, 5,974.80 and 2,522.56

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Solution

The fourth proportional to 3,988.60, 5,974.80 and 2,522.56 is: 3,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.60 : 5,974.80 = 2,522.56 : x
  2. Step 2: Convert to fraction form
    3,988.60/5,974.80 = 2,522.56/x
  3. Step 3: Cross multiply
    3,988.60x = 5,974.80 × 2,522.56
  4. Step 4: Simplify right side
    3,988.60x = 15,071,791.49
  5. Step 5: Solve for x
    x = 15,071,791.49/3,988.60
  6. Step 6: Final answer
    x = 3,778.72

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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.