Home / 7,801.38-11,695.11-2,869.83

Finding the Fourth Proportional to 7,801.38, 11,695.11 and 2,869.83

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Solution

The fourth proportional to 7,801.38, 11,695.11 and 2,869.83 is: 4,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.38 : 11,695.11 = 2,869.83 : x
  2. Step 2: Convert to fraction form
    7,801.38/11,695.11 = 2,869.83/x
  3. Step 3: Cross multiply
    7,801.38x = 11,695.11 × 2,869.83
  4. Step 4: Simplify right side
    7,801.38x = 33,562,977.53
  5. Step 5: Solve for x
    x = 33,562,977.53/7,801.38
  6. Step 6: Final answer
    x = 4,302.18

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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.