Home / 2,044.40-2,821.90-1,939.90

Finding the Fourth Proportional to 2,044.40, 2,821.90 and 1,939.90

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Solution

The fourth proportional to 2,044.40, 2,821.90 and 1,939.90 is: 2,677.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,044.40 : 2,821.90 = 1,939.90 : x
  2. Step 2: Convert to fraction form
    2,044.40/2,821.90 = 1,939.90/x
  3. Step 3: Cross multiply
    2,044.40x = 2,821.90 × 1,939.90
  4. Step 4: Simplify right side
    2,044.40x = 5,474,203.81
  5. Step 5: Solve for x
    x = 5,474,203.81/2,044.40
  6. Step 6: Final answer
    x = 2,677.66

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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.