Home / 3,639.11-5,023.04-3,147.03

Finding the Fourth Proportional to 3,639.11, 5,023.04 and 3,147.03

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Solution

The fourth proportional to 3,639.11, 5,023.04 and 3,147.03 is: 4,343.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.11 : 5,023.04 = 3,147.03 : x
  2. Step 2: Convert to fraction form
    3,639.11/5,023.04 = 3,147.03/x
  3. Step 3: Cross multiply
    3,639.11x = 5,023.04 × 3,147.03
  4. Step 4: Simplify right side
    3,639.11x = 15,807,641.84
  5. Step 5: Solve for x
    x = 15,807,641.84/3,639.11
  6. Step 6: Final answer
    x = 4,343.83

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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.