Home / 1,224.45-1,691.75-964.44

Finding the Fourth Proportional to 1,224.45, 1,691.75 and 964.44

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Solution

The fourth proportional to 1,224.45, 1,691.75 and 964.44 is: 1,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.45 : 1,691.75 = 964.44 : x
  2. Step 2: Convert to fraction form
    1,224.45/1,691.75 = 964.44/x
  3. Step 3: Cross multiply
    1,224.45x = 1,691.75 × 964.44
  4. Step 4: Simplify right side
    1,224.45x = 1,631,593.78
  5. Step 5: Solve for x
    x = 1,631,593.78/1,224.45
  6. Step 6: Final answer
    x = 1,332.51

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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.