Home / 7,974.68-11,962.49-2,428.20

Finding the Fourth Proportional to 7,974.68, 11,962.49 and 2,428.20

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Solution

The fourth proportional to 7,974.68, 11,962.49 and 2,428.20 is: 3,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.68 : 11,962.49 = 2,428.20 : x
  2. Step 2: Convert to fraction form
    7,974.68/11,962.49 = 2,428.20/x
  3. Step 3: Cross multiply
    7,974.68x = 11,962.49 × 2,428.20
  4. Step 4: Simplify right side
    7,974.68x = 29,047,306.08
  5. Step 5: Solve for x
    x = 29,047,306.08/7,974.68
  6. Step 6: Final answer
    x = 3,642.44

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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.