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Finding the Fourth Proportional to 1,867.46, 2,803.01 and 1,379.03

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Solution

The fourth proportional to 1,867.46, 2,803.01 and 1,379.03 is: 2,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.46 : 2,803.01 = 1,379.03 : x
  2. Step 2: Convert to fraction form
    1,867.46/2,803.01 = 1,379.03/x
  3. Step 3: Cross multiply
    1,867.46x = 2,803.01 × 1,379.03
  4. Step 4: Simplify right side
    1,867.46x = 3,865,413.97
  5. Step 5: Solve for x
    x = 3,865,413.97/1,867.46
  6. Step 6: Final answer
    x = 2,069.88

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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.