Home / 5,587.71-7,711.98-3,231.21

Finding the Fourth Proportional to 5,587.71, 7,711.98 and 3,231.21

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Solution

The fourth proportional to 5,587.71, 7,711.98 and 3,231.21 is: 4,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.71 : 7,711.98 = 3,231.21 : x
  2. Step 2: Convert to fraction form
    5,587.71/7,711.98 = 3,231.21/x
  3. Step 3: Cross multiply
    5,587.71x = 7,711.98 × 3,231.21
  4. Step 4: Simplify right side
    5,587.71x = 24,919,026.90
  5. Step 5: Solve for x
    x = 24,919,026.90/5,587.71
  6. Step 6: Final answer
    x = 4,459.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.