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Finding the Fourth Proportional to 1,593.31, 2,198.75 and 885.15

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Solution

The fourth proportional to 1,593.31, 2,198.75 and 885.15 is: 1,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,593.31 : 2,198.75 = 885.15 : x
  2. Step 2: Convert to fraction form
    1,593.31/2,198.75 = 885.15/x
  3. Step 3: Cross multiply
    1,593.31x = 2,198.75 × 885.15
  4. Step 4: Simplify right side
    1,593.31x = 1,946,227.38
  5. Step 5: Solve for x
    x = 1,946,227.38/1,593.31
  6. Step 6: Final answer
    x = 1,221.50

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.