Home / 1,631.44-2,450.31-1,397.71

Finding the Fourth Proportional to 1,631.44, 2,450.31 and 1,397.71

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Solution

The fourth proportional to 1,631.44, 2,450.31 and 1,397.71 is: 2,099.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.44 : 2,450.31 = 1,397.71 : x
  2. Step 2: Convert to fraction form
    1,631.44/2,450.31 = 1,397.71/x
  3. Step 3: Cross multiply
    1,631.44x = 2,450.31 × 1,397.71
  4. Step 4: Simplify right side
    1,631.44x = 3,424,816.66
  5. Step 5: Solve for x
    x = 3,424,816.66/1,631.44
  6. Step 6: Final answer
    x = 2,099.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.