Home / 1,979.42-2,732.87-1,233.68

Finding the Fourth Proportional to 1,979.42, 2,732.87 and 1,233.68

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Solution

The fourth proportional to 1,979.42, 2,732.87 and 1,233.68 is: 1,703.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.42 : 2,732.87 = 1,233.68 : x
  2. Step 2: Convert to fraction form
    1,979.42/2,732.87 = 1,233.68/x
  3. Step 3: Cross multiply
    1,979.42x = 2,732.87 × 1,233.68
  4. Step 4: Simplify right side
    1,979.42x = 3,371,476.48
  5. Step 5: Solve for x
    x = 3,371,476.48/1,979.42
  6. Step 6: Final answer
    x = 1,703.27

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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.