Home / 2,136.56-2,947.68-1,252.28

Finding the Fourth Proportional to 2,136.56, 2,947.68 and 1,252.28

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Solution

The fourth proportional to 2,136.56, 2,947.68 and 1,252.28 is: 1,727.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.56 : 2,947.68 = 1,252.28 : x
  2. Step 2: Convert to fraction form
    2,136.56/2,947.68 = 1,252.28/x
  3. Step 3: Cross multiply
    2,136.56x = 2,947.68 × 1,252.28
  4. Step 4: Simplify right side
    2,136.56x = 3,691,320.71
  5. Step 5: Solve for x
    x = 3,691,320.71/2,136.56
  6. Step 6: Final answer
    x = 1,727.69

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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.