Home / 5,981.38-8,972.41-1,821.53

Finding the Fourth Proportional to 5,981.38, 8,972.41 and 1,821.53

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Solution

The fourth proportional to 5,981.38, 8,972.41 and 1,821.53 is: 2,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.38 : 8,972.41 = 1,821.53 : x
  2. Step 2: Convert to fraction form
    5,981.38/8,972.41 = 1,821.53/x
  3. Step 3: Cross multiply
    5,981.38x = 8,972.41 × 1,821.53
  4. Step 4: Simplify right side
    5,981.38x = 16,343,513.99
  5. Step 5: Solve for x
    x = 16,343,513.99/5,981.38
  6. Step 6: Final answer
    x = 2,732.40

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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.