Home / 2,136.26-2,948.75-1,251.74

Finding the Fourth Proportional to 2,136.26, 2,948.75 and 1,251.74

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Solution

The fourth proportional to 2,136.26, 2,948.75 and 1,251.74 is: 1,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.26 : 2,948.75 = 1,251.74 : x
  2. Step 2: Convert to fraction form
    2,136.26/2,948.75 = 1,251.74/x
  3. Step 3: Cross multiply
    2,136.26x = 2,948.75 × 1,251.74
  4. Step 4: Simplify right side
    2,136.26x = 3,691,047.32
  5. Step 5: Solve for x
    x = 3,691,047.32/2,136.26
  6. Step 6: Final answer
    x = 1,727.81

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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.