Home / 2,136.12-2,946.83-1,251.38

Finding the Fourth Proportional to 2,136.12, 2,946.83 and 1,251.38

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Solution

The fourth proportional to 2,136.12, 2,946.83 and 1,251.38 is: 1,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.12 : 2,946.83 = 1,251.38 : x
  2. Step 2: Convert to fraction form
    2,136.12/2,946.83 = 1,251.38/x
  3. Step 3: Cross multiply
    2,136.12x = 2,946.83 × 1,251.38
  4. Step 4: Simplify right side
    2,136.12x = 3,687,583.13
  5. Step 5: Solve for x
    x = 3,687,583.13/2,136.12
  6. Step 6: Final answer
    x = 1,726.30

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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.