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Finding the Fourth Proportional to 1,631.92, 2,252.01 and 968.53

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Solution

The fourth proportional to 1,631.92, 2,252.01 and 968.53 is: 1,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.92 : 2,252.01 = 968.53 : x
  2. Step 2: Convert to fraction form
    1,631.92/2,252.01 = 968.53/x
  3. Step 3: Cross multiply
    1,631.92x = 2,252.01 × 968.53
  4. Step 4: Simplify right side
    1,631.92x = 2,181,139.25
  5. Step 5: Solve for x
    x = 2,181,139.25/1,631.92
  6. Step 6: Final answer
    x = 1,336.55

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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.