Home / 1,631.19-2,250.42-1,071.97

Finding the Fourth Proportional to 1,631.19, 2,250.42 and 1,071.97

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Solution

The fourth proportional to 1,631.19, 2,250.42 and 1,071.97 is: 1,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.19 : 2,250.42 = 1,071.97 : x
  2. Step 2: Convert to fraction form
    1,631.19/2,250.42 = 1,071.97/x
  3. Step 3: Cross multiply
    1,631.19x = 2,250.42 × 1,071.97
  4. Step 4: Simplify right side
    1,631.19x = 2,412,382.73
  5. Step 5: Solve for x
    x = 2,412,382.73/1,631.19
  6. Step 6: Final answer
    x = 1,478.91

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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.