Home / 3,926.12-5,886.09-2,689.76

Finding the Fourth Proportional to 3,926.12, 5,886.09 and 2,689.76

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Solution

The fourth proportional to 3,926.12, 5,886.09 and 2,689.76 is: 4,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.12 : 5,886.09 = 2,689.76 : x
  2. Step 2: Convert to fraction form
    3,926.12/5,886.09 = 2,689.76/x
  3. Step 3: Cross multiply
    3,926.12x = 5,886.09 × 2,689.76
  4. Step 4: Simplify right side
    3,926.12x = 15,832,169.44
  5. Step 5: Solve for x
    x = 15,832,169.44/3,926.12
  6. Step 6: Final answer
    x = 4,032.52

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1.5x scale

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.