Home / 7,687.32-11,529.72-2,141.04

Finding the Fourth Proportional to 7,687.32, 11,529.72 and 2,141.04

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Solution

The fourth proportional to 7,687.32, 11,529.72 and 2,141.04 is: 3,211.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.32 : 11,529.72 = 2,141.04 : x
  2. Step 2: Convert to fraction form
    7,687.32/11,529.72 = 2,141.04/x
  3. Step 3: Cross multiply
    7,687.32x = 11,529.72 × 2,141.04
  4. Step 4: Simplify right side
    7,687.32x = 24,685,591.71
  5. Step 5: Solve for x
    x = 24,685,591.71/7,687.32
  6. Step 6: Final answer
    x = 3,211.21

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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.