Home / 5,981.28-8,971.92-2,084.64

Finding the Fourth Proportional to 5,981.28, 8,971.92 and 2,084.64

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Solution

The fourth proportional to 5,981.28, 8,971.92 and 2,084.64 is: 3,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.28 : 8,971.92 = 2,084.64 : x
  2. Step 2: Convert to fraction form
    5,981.28/8,971.92 = 2,084.64/x
  3. Step 3: Cross multiply
    5,981.28x = 8,971.92 × 2,084.64
  4. Step 4: Simplify right side
    5,981.28x = 18,703,223.31
  5. Step 5: Solve for x
    x = 18,703,223.31/5,981.28
  6. Step 6: Final answer
    x = 3,126.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.