Home / 5,396.27-7,447.39-3,158.02

Finding the Fourth Proportional to 5,396.27, 7,447.39 and 3,158.02

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Solution

The fourth proportional to 5,396.27, 7,447.39 and 3,158.02 is: 4,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.27 : 7,447.39 = 3,158.02 : x
  2. Step 2: Convert to fraction form
    5,396.27/7,447.39 = 3,158.02/x
  3. Step 3: Cross multiply
    5,396.27x = 7,447.39 × 3,158.02
  4. Step 4: Simplify right side
    5,396.27x = 23,518,989.22
  5. Step 5: Solve for x
    x = 23,518,989.22/5,396.27
  6. Step 6: Final answer
    x = 4,358.38

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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.