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Finding the Fourth Proportional to 3,899.29, 5,842.07 and 2,726.87

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Solution

The fourth proportional to 3,899.29, 5,842.07 and 2,726.87 is: 4,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.29 : 5,842.07 = 2,726.87 : x
  2. Step 2: Convert to fraction form
    3,899.29/5,842.07 = 2,726.87/x
  3. Step 3: Cross multiply
    3,899.29x = 5,842.07 × 2,726.87
  4. Step 4: Simplify right side
    3,899.29x = 15,930,548.14
  5. Step 5: Solve for x
    x = 15,930,548.14/3,899.29
  6. Step 6: Final answer
    x = 4,085.50

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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.