Home / 7,974.39-11,964.15-2,428.81

Finding the Fourth Proportional to 7,974.39, 11,964.15 and 2,428.81

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Solution

The fourth proportional to 7,974.39, 11,964.15 and 2,428.81 is: 3,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.39 : 11,964.15 = 2,428.81 : x
  2. Step 2: Convert to fraction form
    7,974.39/11,964.15 = 2,428.81/x
  3. Step 3: Cross multiply
    7,974.39x = 11,964.15 × 2,428.81
  4. Step 4: Simplify right side
    7,974.39x = 29,058,647.16
  5. Step 5: Solve for x
    x = 29,058,647.16/7,974.39
  6. Step 6: Final answer
    x = 3,644.00

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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.