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Finding the Fourth Proportional to 2,270.87, 3,403.88 and 1,294.87

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Solution

The fourth proportional to 2,270.87, 3,403.88 and 1,294.87 is: 1,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.87 : 3,403.88 = 1,294.87 : x
  2. Step 2: Convert to fraction form
    2,270.87/3,403.88 = 1,294.87/x
  3. Step 3: Cross multiply
    2,270.87x = 3,403.88 × 1,294.87
  4. Step 4: Simplify right side
    2,270.87x = 4,407,582.10
  5. Step 5: Solve for x
    x = 4,407,582.10/2,270.87
  6. Step 6: Final answer
    x = 1,940.92

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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.