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Finding the Fourth Proportional to 2,868.75, 4,304.75 and 1,329.75

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Solution

The fourth proportional to 2,868.75, 4,304.75 and 1,329.75 is: 1,995.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.75 : 4,304.75 = 1,329.75 : x
  2. Step 2: Convert to fraction form
    2,868.75/4,304.75 = 1,329.75/x
  3. Step 3: Cross multiply
    2,868.75x = 4,304.75 × 1,329.75
  4. Step 4: Simplify right side
    2,868.75x = 5,724,234.66
  5. Step 5: Solve for x
    x = 5,724,234.66/2,868.75
  6. Step 6: Final answer
    x = 1,995.38

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1.5x scale

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.