Home / 1,323.29-1,984.94-553.25

Finding the Fourth Proportional to 1,323.29, 1,984.94 and 553.25

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Solution

The fourth proportional to 1,323.29, 1,984.94 and 553.25 is: 829.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.29 : 1,984.94 = 553.25 : x
  2. Step 2: Convert to fraction form
    1,323.29/1,984.94 = 553.25/x
  3. Step 3: Cross multiply
    1,323.29x = 1,984.94 × 553.25
  4. Step 4: Simplify right side
    1,323.29x = 1,098,168.06
  5. Step 5: Solve for x
    x = 1,098,168.06/1,323.29
  6. Step 6: Final answer
    x = 829.88

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Double scale
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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.