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Finding the Fourth Proportional to 1,324.76, 1,829.08 and 827.52

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Solution

The fourth proportional to 1,324.76, 1,829.08 and 827.52 is: 1,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.76 : 1,829.08 = 827.52 : x
  2. Step 2: Convert to fraction form
    1,324.76/1,829.08 = 827.52/x
  3. Step 3: Cross multiply
    1,324.76x = 1,829.08 × 827.52
  4. Step 4: Simplify right side
    1,324.76x = 1,513,600.28
  5. Step 5: Solve for x
    x = 1,513,600.28/1,324.76
  6. Step 6: Final answer
    x = 1,142.55

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Half scale
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Double scale
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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.