Home / 3,972.11-5,955.80-3,387.42

Finding the Fourth Proportional to 3,972.11, 5,955.80 and 3,387.42

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Solution

The fourth proportional to 3,972.11, 5,955.80 and 3,387.42 is: 5,079.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.11 : 5,955.80 = 3,387.42 : x
  2. Step 2: Convert to fraction form
    3,972.11/5,955.80 = 3,387.42/x
  3. Step 3: Cross multiply
    3,972.11x = 5,955.80 × 3,387.42
  4. Step 4: Simplify right side
    3,972.11x = 20,174,779.10
  5. Step 5: Solve for x
    x = 20,174,779.10/3,972.11
  6. Step 6: Final answer
    x = 5,079.12

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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.