Home / 7,687.48-11,531.52-2,141.30

Finding the Fourth Proportional to 7,687.48, 11,531.52 and 2,141.30

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Solution

The fourth proportional to 7,687.48, 11,531.52 and 2,141.30 is: 3,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.48 : 11,531.52 = 2,141.30 : x
  2. Step 2: Convert to fraction form
    7,687.48/11,531.52 = 2,141.30/x
  3. Step 3: Cross multiply
    7,687.48x = 11,531.52 × 2,141.30
  4. Step 4: Simplify right side
    7,687.48x = 24,692,477.65
  5. Step 5: Solve for x
    x = 24,692,477.65/7,687.48
  6. Step 6: Final answer
    x = 3,212.04

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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.