Home / 3,981.30-5,972.02-2,225.30

Finding the Fourth Proportional to 3,981.30, 5,972.02 and 2,225.30

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Solution

The fourth proportional to 3,981.30, 5,972.02 and 2,225.30 is: 3,337.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.30 : 5,972.02 = 2,225.30 : x
  2. Step 2: Convert to fraction form
    3,981.30/5,972.02 = 2,225.30/x
  3. Step 3: Cross multiply
    3,981.30x = 5,972.02 × 2,225.30
  4. Step 4: Simplify right side
    3,981.30x = 13,289,536.11
  5. Step 5: Solve for x
    x = 13,289,536.11/3,981.30
  6. Step 6: Final answer
    x = 3,337.99

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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.