Home / 2,136.41-2,948.45-1,296.92

Finding the Fourth Proportional to 2,136.41, 2,948.45 and 1,296.92

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Solution

The fourth proportional to 2,136.41, 2,948.45 and 1,296.92 is: 1,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.41 : 2,948.45 = 1,296.92 : x
  2. Step 2: Convert to fraction form
    2,136.41/2,948.45 = 1,296.92/x
  3. Step 3: Cross multiply
    2,136.41x = 2,948.45 × 1,296.92
  4. Step 4: Simplify right side
    2,136.41x = 3,823,882.55
  5. Step 5: Solve for x
    x = 3,823,882.55/2,136.41
  6. Step 6: Final answer
    x = 1,789.87

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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.