Home / 7,247.24-10,872.30-3,087.20

Finding the Fourth Proportional to 7,247.24, 10,872.30 and 3,087.20

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Solution

The fourth proportional to 7,247.24, 10,872.30 and 3,087.20 is: 4,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,247.24 : 10,872.30 = 3,087.20 : x
  2. Step 2: Convert to fraction form
    7,247.24/10,872.30 = 3,087.20/x
  3. Step 3: Cross multiply
    7,247.24x = 10,872.30 × 3,087.20
  4. Step 4: Simplify right side
    7,247.24x = 33,564,964.56
  5. Step 5: Solve for x
    x = 33,564,964.56/7,247.24
  6. Step 6: Final answer
    x = 4,631.41

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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.