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Finding the Fourth Proportional to 3,866.32, 5,799.50 and 2,717.20

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Solution

The fourth proportional to 3,866.32, 5,799.50 and 2,717.20 is: 4,075.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.32 : 5,799.50 = 2,717.20 : x
  2. Step 2: Convert to fraction form
    3,866.32/5,799.50 = 2,717.20/x
  3. Step 3: Cross multiply
    3,866.32x = 5,799.50 × 2,717.20
  4. Step 4: Simplify right side
    3,866.32x = 15,758,401.40
  5. Step 5: Solve for x
    x = 15,758,401.40/3,866.32
  6. Step 6: Final answer
    x = 4,075.81

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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.