Home / 1,376.65-2,053.76-1,132.44

Finding the Fourth Proportional to 1,376.65, 2,053.76 and 1,132.44

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Solution

The fourth proportional to 1,376.65, 2,053.76 and 1,132.44 is: 1,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.65 : 2,053.76 = 1,132.44 : x
  2. Step 2: Convert to fraction form
    1,376.65/2,053.76 = 1,132.44/x
  3. Step 3: Cross multiply
    1,376.65x = 2,053.76 × 1,132.44
  4. Step 4: Simplify right side
    1,376.65x = 2,325,759.97
  5. Step 5: Solve for x
    x = 2,325,759.97/1,376.65
  6. Step 6: Final answer
    x = 1,689.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.