Home / 5,981.32-8,972.34-1,821.61

Finding the Fourth Proportional to 5,981.32, 8,972.34 and 1,821.61

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Solution

The fourth proportional to 5,981.32, 8,972.34 and 1,821.61 is: 2,732.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.32 : 8,972.34 = 1,821.61 : x
  2. Step 2: Convert to fraction form
    5,981.32/8,972.34 = 1,821.61/x
  3. Step 3: Cross multiply
    5,981.32x = 8,972.34 × 1,821.61
  4. Step 4: Simplify right side
    5,981.32x = 16,344,104.27
  5. Step 5: Solve for x
    x = 16,344,104.27/5,981.32
  6. Step 6: Final answer
    x = 2,732.52

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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.