Home / 1,938.48-2,675.92-1,379.04

Finding the Fourth Proportional to 1,938.48, 2,675.92 and 1,379.04

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Solution

The fourth proportional to 1,938.48, 2,675.92 and 1,379.04 is: 1,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.48 : 2,675.92 = 1,379.04 : x
  2. Step 2: Convert to fraction form
    1,938.48/2,675.92 = 1,379.04/x
  3. Step 3: Cross multiply
    1,938.48x = 2,675.92 × 1,379.04
  4. Step 4: Simplify right side
    1,938.48x = 3,690,200.72
  5. Step 5: Solve for x
    x = 3,690,200.72/1,938.48
  6. Step 6: Final answer
    x = 1,903.66

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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.