Home / 6,691.11-10,036.32-3,178.55

Finding the Fourth Proportional to 6,691.11, 10,036.32 and 3,178.55

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Solution

The fourth proportional to 6,691.11, 10,036.32 and 3,178.55 is: 4,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.11 : 10,036.32 = 3,178.55 : x
  2. Step 2: Convert to fraction form
    6,691.11/10,036.32 = 3,178.55/x
  3. Step 3: Cross multiply
    6,691.11x = 10,036.32 × 3,178.55
  4. Step 4: Simplify right side
    6,691.11x = 31,900,894.75
  5. Step 5: Solve for x
    x = 31,900,894.75/6,691.11
  6. Step 6: Final answer
    x = 4,767.65

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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.