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Finding the Fourth Proportional to 3,361.01, 5,041.51 and 1,387.75

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Solution

The fourth proportional to 3,361.01, 5,041.51 and 1,387.75 is: 2,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.01 : 5,041.51 = 1,387.75 : x
  2. Step 2: Convert to fraction form
    3,361.01/5,041.51 = 1,387.75/x
  3. Step 3: Cross multiply
    3,361.01x = 5,041.51 × 1,387.75
  4. Step 4: Simplify right side
    3,361.01x = 6,996,348.88
  5. Step 5: Solve for x
    x = 6,996,348.88/3,361.01
  6. Step 6: Final answer
    x = 2,081.62

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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.