Home / 5,489.21-7,575.86-3,132.11

Finding the Fourth Proportional to 5,489.21, 7,575.86 and 3,132.11

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Solution

The fourth proportional to 5,489.21, 7,575.86 and 3,132.11 is: 4,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.21 : 7,575.86 = 3,132.11 : x
  2. Step 2: Convert to fraction form
    5,489.21/7,575.86 = 3,132.11/x
  3. Step 3: Cross multiply
    5,489.21x = 7,575.86 × 3,132.11
  4. Step 4: Simplify right side
    5,489.21x = 23,728,411.20
  5. Step 5: Solve for x
    x = 23,728,411.20/5,489.21
  6. Step 6: Final answer
    x = 4,322.74

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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.