Home / 1,299.23-1,945.68-1,217.24

Finding the Fourth Proportional to 1,299.23, 1,945.68 and 1,217.24

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Solution

The fourth proportional to 1,299.23, 1,945.68 and 1,217.24 is: 1,822.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.23 : 1,945.68 = 1,217.24 : x
  2. Step 2: Convert to fraction form
    1,299.23/1,945.68 = 1,217.24/x
  3. Step 3: Cross multiply
    1,299.23x = 1,945.68 × 1,217.24
  4. Step 4: Simplify right side
    1,299.23x = 2,368,359.52
  5. Step 5: Solve for x
    x = 2,368,359.52/1,299.23
  6. Step 6: Final answer
    x = 1,822.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.