Home / 3,801.66-5,687.88-2,158.98

Finding the Fourth Proportional to 3,801.66, 5,687.88 and 2,158.98

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Solution

The fourth proportional to 3,801.66, 5,687.88 and 2,158.98 is: 3,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.66 : 5,687.88 = 2,158.98 : x
  2. Step 2: Convert to fraction form
    3,801.66/5,687.88 = 2,158.98/x
  3. Step 3: Cross multiply
    3,801.66x = 5,687.88 × 2,158.98
  4. Step 4: Simplify right side
    3,801.66x = 12,280,019.16
  5. Step 5: Solve for x
    x = 12,280,019.16/3,801.66
  6. Step 6: Final answer
    x = 3,230.17

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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.