Home / 1,147.59-1,721.38-1,089.16

Finding the Fourth Proportional to 1,147.59, 1,721.38 and 1,089.16

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Solution

The fourth proportional to 1,147.59, 1,721.38 and 1,089.16 is: 1,633.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147.59 : 1,721.38 = 1,089.16 : x
  2. Step 2: Convert to fraction form
    1,147.59/1,721.38 = 1,089.16/x
  3. Step 3: Cross multiply
    1,147.59x = 1,721.38 × 1,089.16
  4. Step 4: Simplify right side
    1,147.59x = 1,874,849.63
  5. Step 5: Solve for x
    x = 1,874,849.63/1,147.59
  6. Step 6: Final answer
    x = 1,633.73

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Similar ratio
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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.