Home / 5,371.21-7,409.17-3,132.88

Finding the Fourth Proportional to 5,371.21, 7,409.17 and 3,132.88

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Solution

The fourth proportional to 5,371.21, 7,409.17 and 3,132.88 is: 4,321.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.21 : 7,409.17 = 3,132.88 : x
  2. Step 2: Convert to fraction form
    5,371.21/7,409.17 = 3,132.88/x
  3. Step 3: Cross multiply
    5,371.21x = 7,409.17 × 3,132.88
  4. Step 4: Simplify right side
    5,371.21x = 23,212,025.90
  5. Step 5: Solve for x
    x = 23,212,025.90/5,371.21
  6. Step 6: Final answer
    x = 4,321.56

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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.