Home / 1,727.78-2,379.48-1,722.38

Finding the Fourth Proportional to 1,727.78, 2,379.48 and 1,722.38

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Solution

The fourth proportional to 1,727.78, 2,379.48 and 1,722.38 is: 2,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.78 : 2,379.48 = 1,722.38 : x
  2. Step 2: Convert to fraction form
    1,727.78/2,379.48 = 1,722.38/x
  3. Step 3: Cross multiply
    1,727.78x = 2,379.48 × 1,722.38
  4. Step 4: Simplify right side
    1,727.78x = 4,098,368.76
  5. Step 5: Solve for x
    x = 4,098,368.76/1,727.78
  6. Step 6: Final answer
    x = 2,372.04

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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.