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Finding the Fourth Proportional to 1,626.18, 2,243.73 and 963.19

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Solution

The fourth proportional to 1,626.18, 2,243.73 and 963.19 is: 1,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.18 : 2,243.73 = 963.19 : x
  2. Step 2: Convert to fraction form
    1,626.18/2,243.73 = 963.19/x
  3. Step 3: Cross multiply
    1,626.18x = 2,243.73 × 963.19
  4. Step 4: Simplify right side
    1,626.18x = 2,161,138.30
  5. Step 5: Solve for x
    x = 2,161,138.30/1,626.18
  6. Step 6: Final answer
    x = 1,328.97

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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.