Home / 4,989.20-6,882.28-3,122.96

Finding the Fourth Proportional to 4,989.20, 6,882.28 and 3,122.96

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Solution

The fourth proportional to 4,989.20, 6,882.28 and 3,122.96 is: 4,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.20 : 6,882.28 = 3,122.96 : x
  2. Step 2: Convert to fraction form
    4,989.20/6,882.28 = 3,122.96/x
  3. Step 3: Cross multiply
    4,989.20x = 6,882.28 × 3,122.96
  4. Step 4: Simplify right side
    4,989.20x = 21,493,085.15
  5. Step 5: Solve for x
    x = 21,493,085.15/4,989.20
  6. Step 6: Final answer
    x = 4,307.92

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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.