Home / 3,729.11-5,142.35-2,609.69

Finding the Fourth Proportional to 3,729.11, 5,142.35 and 2,609.69

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Solution

The fourth proportional to 3,729.11, 5,142.35 and 2,609.69 is: 3,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.11 : 5,142.35 = 2,609.69 : x
  2. Step 2: Convert to fraction form
    3,729.11/5,142.35 = 2,609.69/x
  3. Step 3: Cross multiply
    3,729.11x = 5,142.35 × 2,609.69
  4. Step 4: Simplify right side
    3,729.11x = 13,419,920.18
  5. Step 5: Solve for x
    x = 13,419,920.18/3,729.11
  6. Step 6: Final answer
    x = 3,598.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.