Home / 2,136.11-2,947.55-1,296.99

Finding the Fourth Proportional to 2,136.11, 2,947.55 and 1,296.99

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Solution

The fourth proportional to 2,136.11, 2,947.55 and 1,296.99 is: 1,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.11 : 2,947.55 = 1,296.99 : x
  2. Step 2: Convert to fraction form
    2,136.11/2,947.55 = 1,296.99/x
  3. Step 3: Cross multiply
    2,136.11x = 2,947.55 × 1,296.99
  4. Step 4: Simplify right side
    2,136.11x = 3,822,936.39
  5. Step 5: Solve for x
    x = 3,822,936.39/2,136.11
  6. Step 6: Final answer
    x = 1,789.68

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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.