Home / 6,859.29-9,465.78-3,876.09

Finding the Fourth Proportional to 6,859.29, 9,465.78 and 3,876.09

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Solution

The fourth proportional to 6,859.29, 9,465.78 and 3,876.09 is: 5,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.29 : 9,465.78 = 3,876.09 : x
  2. Step 2: Convert to fraction form
    6,859.29/9,465.78 = 3,876.09/x
  3. Step 3: Cross multiply
    6,859.29x = 9,465.78 × 3,876.09
  4. Step 4: Simplify right side
    6,859.29x = 36,690,215.20
  5. Step 5: Solve for x
    x = 36,690,215.20/6,859.29
  6. Step 6: Final answer
    x = 5,348.98

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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.