Home / 3,654.72-5,469.32-2,988.90

Finding the Fourth Proportional to 3,654.72, 5,469.32 and 2,988.90

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Solution

The fourth proportional to 3,654.72, 5,469.32 and 2,988.90 is: 4,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,654.72 : 5,469.32 = 2,988.90 : x
  2. Step 2: Convert to fraction form
    3,654.72/5,469.32 = 2,988.90/x
  3. Step 3: Cross multiply
    3,654.72x = 5,469.32 × 2,988.90
  4. Step 4: Simplify right side
    3,654.72x = 16,347,258.02
  5. Step 5: Solve for x
    x = 16,347,258.02/3,654.72
  6. Step 6: Final answer
    x = 4,472.92

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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.