Home / 2,554.80-3,833.85-1,385.61

Finding the Fourth Proportional to 2,554.80, 3,833.85 and 1,385.61

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Solution

The fourth proportional to 2,554.80, 3,833.85 and 1,385.61 is: 2,079.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,554.80 : 3,833.85 = 1,385.61 : x
  2. Step 2: Convert to fraction form
    2,554.80/3,833.85 = 1,385.61/x
  3. Step 3: Cross multiply
    2,554.80x = 3,833.85 × 1,385.61
  4. Step 4: Simplify right side
    2,554.80x = 5,312,220.90
  5. Step 5: Solve for x
    x = 5,312,220.90/2,554.80
  6. Step 6: Final answer
    x = 2,079.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.