Home / 3,815.89-5,269.19-2,870.04

Finding the Fourth Proportional to 3,815.89, 5,269.19 and 2,870.04

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Solution

The fourth proportional to 3,815.89, 5,269.19 and 2,870.04 is: 3,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.89 : 5,269.19 = 2,870.04 : x
  2. Step 2: Convert to fraction form
    3,815.89/5,269.19 = 2,870.04/x
  3. Step 3: Cross multiply
    3,815.89x = 5,269.19 × 2,870.04
  4. Step 4: Simplify right side
    3,815.89x = 15,122,791.48
  5. Step 5: Solve for x
    x = 15,122,791.48/3,815.89
  6. Step 6: Final answer
    x = 3,963.11

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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.