Home / 7,651.28-11,479.98-2,721.26

Finding the Fourth Proportional to 7,651.28, 11,479.98 and 2,721.26

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Solution

The fourth proportional to 7,651.28, 11,479.98 and 2,721.26 is: 4,082.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.28 : 11,479.98 = 2,721.26 : x
  2. Step 2: Convert to fraction form
    7,651.28/11,479.98 = 2,721.26/x
  3. Step 3: Cross multiply
    7,651.28x = 11,479.98 × 2,721.26
  4. Step 4: Simplify right side
    7,651.28x = 31,240,010.37
  5. Step 5: Solve for x
    x = 31,240,010.37/7,651.28
  6. Step 6: Final answer
    x = 4,082.98

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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.