Home / 2,136.29-2,947.25-1,251.77

Finding the Fourth Proportional to 2,136.29, 2,947.25 and 1,251.77

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Solution

The fourth proportional to 2,136.29, 2,947.25 and 1,251.77 is: 1,726.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.29 : 2,947.25 = 1,251.77 : x
  2. Step 2: Convert to fraction form
    2,136.29/2,947.25 = 1,251.77/x
  3. Step 3: Cross multiply
    2,136.29x = 2,947.25 × 1,251.77
  4. Step 4: Simplify right side
    2,136.29x = 3,689,267.53
  5. Step 5: Solve for x
    x = 3,689,267.53/2,136.29
  6. Step 6: Final answer
    x = 1,726.95

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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.