Home / 7,899.91-11,855.98-2,974.03

Finding the Fourth Proportional to 7,899.91, 11,855.98 and 2,974.03

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Solution

The fourth proportional to 7,899.91, 11,855.98 and 2,974.03 is: 4,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.91 : 11,855.98 = 2,974.03 : x
  2. Step 2: Convert to fraction form
    7,899.91/11,855.98 = 2,974.03/x
  3. Step 3: Cross multiply
    7,899.91x = 11,855.98 × 2,974.03
  4. Step 4: Simplify right side
    7,899.91x = 35,260,040.20
  5. Step 5: Solve for x
    x = 35,260,040.20/7,899.91
  6. Step 6: Final answer
    x = 4,463.35

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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.