Home / 1,631.10-2,250.62-968.11

Finding the Fourth Proportional to 1,631.10, 2,250.62 and 968.11

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Solution

The fourth proportional to 1,631.10, 2,250.62 and 968.11 is: 1,335.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.10 : 2,250.62 = 968.11 : x
  2. Step 2: Convert to fraction form
    1,631.10/2,250.62 = 968.11/x
  3. Step 3: Cross multiply
    1,631.10x = 2,250.62 × 968.11
  4. Step 4: Simplify right side
    1,631.10x = 2,178,847.73
  5. Step 5: Solve for x
    x = 2,178,847.73/1,631.10
  6. Step 6: Final answer
    x = 1,335.81

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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.