Home / 5,380.97-7,425.27-3,142.56

Finding the Fourth Proportional to 5,380.97, 7,425.27 and 3,142.56

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Solution

The fourth proportional to 5,380.97, 7,425.27 and 3,142.56 is: 4,336.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.97 : 7,425.27 = 3,142.56 : x
  2. Step 2: Convert to fraction form
    5,380.97/7,425.27 = 3,142.56/x
  3. Step 3: Cross multiply
    5,380.97x = 7,425.27 × 3,142.56
  4. Step 4: Simplify right side
    5,380.97x = 23,334,384.34
  5. Step 5: Solve for x
    x = 23,334,384.34/5,380.97
  6. Step 6: Final answer
    x = 4,336.47

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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.