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Finding the Fourth Proportional to 2,865.01, 4,291.92 and 1,361.89

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Solution

The fourth proportional to 2,865.01, 4,291.92 and 1,361.89 is: 2,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.01 : 4,291.92 = 1,361.89 : x
  2. Step 2: Convert to fraction form
    2,865.01/4,291.92 = 1,361.89/x
  3. Step 3: Cross multiply
    2,865.01x = 4,291.92 × 1,361.89
  4. Step 4: Simplify right side
    2,865.01x = 5,845,122.93
  5. Step 5: Solve for x
    x = 5,845,122.93/2,865.01
  6. Step 6: Final answer
    x = 2,040.18

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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.