Home / 3,136.38-4,326.66-2,638.83

Finding the Fourth Proportional to 3,136.38, 4,326.66 and 2,638.83

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Solution

The fourth proportional to 3,136.38, 4,326.66 and 2,638.83 is: 3,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.38 : 4,326.66 = 2,638.83 : x
  2. Step 2: Convert to fraction form
    3,136.38/4,326.66 = 2,638.83/x
  3. Step 3: Cross multiply
    3,136.38x = 4,326.66 × 2,638.83
  4. Step 4: Simplify right side
    3,136.38x = 11,417,320.21
  5. Step 5: Solve for x
    x = 11,417,320.21/3,136.38
  6. Step 6: Final answer
    x = 3,640.29

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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.