Home / 7,721.28-11,583.72-2,526.84

Finding the Fourth Proportional to 7,721.28, 11,583.72 and 2,526.84

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Solution

The fourth proportional to 7,721.28, 11,583.72 and 2,526.84 is: 3,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.28 : 11,583.72 = 2,526.84 : x
  2. Step 2: Convert to fraction form
    7,721.28/11,583.72 = 2,526.84/x
  3. Step 3: Cross multiply
    7,721.28x = 11,583.72 × 2,526.84
  4. Step 4: Simplify right side
    7,721.28x = 29,270,207.04
  5. Step 5: Solve for x
    x = 29,270,207.04/7,721.28
  6. Step 6: Final answer
    x = 3,790.85

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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.