Home / 1,939.72-2,894.68-1,732.12

Finding the Fourth Proportional to 1,939.72, 2,894.68 and 1,732.12

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Solution

The fourth proportional to 1,939.72, 2,894.68 and 1,732.12 is: 2,584.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.72 : 2,894.68 = 1,732.12 : x
  2. Step 2: Convert to fraction form
    1,939.72/2,894.68 = 1,732.12/x
  3. Step 3: Cross multiply
    1,939.72x = 2,894.68 × 1,732.12
  4. Step 4: Simplify right side
    1,939.72x = 5,013,923.18
  5. Step 5: Solve for x
    x = 5,013,923.18/1,939.72
  6. Step 6: Final answer
    x = 2,584.87

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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.