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Finding the Fourth Proportional to 2,267.40, 3,401.10 and 2,065.80

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Solution

The fourth proportional to 2,267.40, 3,401.10 and 2,065.80 is: 3,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.40 : 3,401.10 = 2,065.80 : x
  2. Step 2: Convert to fraction form
    2,267.40/3,401.10 = 2,065.80/x
  3. Step 3: Cross multiply
    2,267.40x = 3,401.10 × 2,065.80
  4. Step 4: Simplify right side
    2,267.40x = 7,025,992.38
  5. Step 5: Solve for x
    x = 7,025,992.38/2,267.40
  6. Step 6: Final answer
    x = 3,098.70

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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.