Home / 5,396.42-7,447.25-3,158.51

Finding the Fourth Proportional to 5,396.42, 7,447.25 and 3,158.51

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Solution

The fourth proportional to 5,396.42, 7,447.25 and 3,158.51 is: 4,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.42 : 7,447.25 = 3,158.51 : x
  2. Step 2: Convert to fraction form
    5,396.42/7,447.25 = 3,158.51/x
  3. Step 3: Cross multiply
    5,396.42x = 7,447.25 × 3,158.51
  4. Step 4: Simplify right side
    5,396.42x = 23,522,179.18
  5. Step 5: Solve for x
    x = 23,522,179.18/5,396.42
  6. Step 6: Final answer
    x = 4,358.85

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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.