Home / 1,979.83-2,732.08-1,083.56

Finding the Fourth Proportional to 1,979.83, 2,732.08 and 1,083.56

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Solution

The fourth proportional to 1,979.83, 2,732.08 and 1,083.56 is: 1,495.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.83 : 2,732.08 = 1,083.56 : x
  2. Step 2: Convert to fraction form
    1,979.83/2,732.08 = 1,083.56/x
  3. Step 3: Cross multiply
    1,979.83x = 2,732.08 × 1,083.56
  4. Step 4: Simplify right side
    1,979.83x = 2,960,356.24
  5. Step 5: Solve for x
    x = 2,960,356.24/1,979.83
  6. Step 6: Final answer
    x = 1,495.26

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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.