Home / 2,721.16-4,083.10-1,079.09

Finding the Fourth Proportional to 2,721.16, 4,083.10 and 1,079.09

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Solution

The fourth proportional to 2,721.16, 4,083.10 and 1,079.09 is: 1,619.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.16 : 4,083.10 = 1,079.09 : x
  2. Step 2: Convert to fraction form
    2,721.16/4,083.10 = 1,079.09/x
  3. Step 3: Cross multiply
    2,721.16x = 4,083.10 × 1,079.09
  4. Step 4: Simplify right side
    2,721.16x = 4,406,032.38
  5. Step 5: Solve for x
    x = 4,406,032.38/2,721.16
  6. Step 6: Final answer
    x = 1,619.17

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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.