Home / 6,876.29-9,488.70-3,891.44

Finding the Fourth Proportional to 6,876.29, 9,488.70 and 3,891.44

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Solution

The fourth proportional to 6,876.29, 9,488.70 and 3,891.44 is: 5,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.29 : 9,488.70 = 3,891.44 : x
  2. Step 2: Convert to fraction form
    6,876.29/9,488.70 = 3,891.44/x
  3. Step 3: Cross multiply
    6,876.29x = 9,488.70 × 3,891.44
  4. Step 4: Simplify right side
    6,876.29x = 36,924,659.28
  5. Step 5: Solve for x
    x = 36,924,659.28/6,876.29
  6. Step 6: Final answer
    x = 5,369.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.