Home / 2,821.71-3,895.55-1,702.96

Finding the Fourth Proportional to 2,821.71, 3,895.55 and 1,702.96

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Solution

The fourth proportional to 2,821.71, 3,895.55 and 1,702.96 is: 2,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.71 : 3,895.55 = 1,702.96 : x
  2. Step 2: Convert to fraction form
    2,821.71/3,895.55 = 1,702.96/x
  3. Step 3: Cross multiply
    2,821.71x = 3,895.55 × 1,702.96
  4. Step 4: Simplify right side
    2,821.71x = 6,633,965.83
  5. Step 5: Solve for x
    x = 6,633,965.83/2,821.71
  6. Step 6: Final answer
    x = 2,351.04

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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.