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Finding the Fourth Proportional to 895.87, 1,236.36 and 517.87

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Solution

The fourth proportional to 895.87, 1,236.36 and 517.87 is: 714.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.87 : 1,236.36 = 517.87 : x
  2. Step 2: Convert to fraction form
    895.87/1,236.36 = 517.87/x
  3. Step 3: Cross multiply
    895.87x = 1,236.36 × 517.87
  4. Step 4: Simplify right side
    895.87x = 640,273.75
  5. Step 5: Solve for x
    x = 640,273.75/895.87
  6. Step 6: Final answer
    x = 714.69

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Double scale
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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.