Home / 7,928.52-11,892.75-2,381.87

Finding the Fourth Proportional to 7,928.52, 11,892.75 and 2,381.87

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Solution

The fourth proportional to 7,928.52, 11,892.75 and 2,381.87 is: 3,572.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.52 : 11,892.75 = 2,381.87 : x
  2. Step 2: Convert to fraction form
    7,928.52/11,892.75 = 2,381.87/x
  3. Step 3: Cross multiply
    7,928.52x = 11,892.75 × 2,381.87
  4. Step 4: Simplify right side
    7,928.52x = 28,326,924.98
  5. Step 5: Solve for x
    x = 28,326,924.98/7,928.52
  6. Step 6: Final answer
    x = 3,572.79

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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.