Home / 7,929.11-11,894.90-2,381.83

Finding the Fourth Proportional to 7,929.11, 11,894.90 and 2,381.83

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Solution

The fourth proportional to 7,929.11, 11,894.90 and 2,381.83 is: 3,573.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.11 : 11,894.90 = 2,381.83 : x
  2. Step 2: Convert to fraction form
    7,929.11/11,894.90 = 2,381.83/x
  3. Step 3: Cross multiply
    7,929.11x = 11,894.90 × 2,381.83
  4. Step 4: Simplify right side
    7,929.11x = 28,331,588.02
  5. Step 5: Solve for x
    x = 28,331,588.02/7,929.11
  6. Step 6: Final answer
    x = 3,573.11

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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.