Home / 3,540.28-5,310.44-1,075.12

Finding the Fourth Proportional to 3,540.28, 5,310.44 and 1,075.12

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Solution

The fourth proportional to 3,540.28, 5,310.44 and 1,075.12 is: 1,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.28 : 5,310.44 = 1,075.12 : x
  2. Step 2: Convert to fraction form
    3,540.28/5,310.44 = 1,075.12/x
  3. Step 3: Cross multiply
    3,540.28x = 5,310.44 × 1,075.12
  4. Step 4: Simplify right side
    3,540.28x = 5,709,360.25
  5. Step 5: Solve for x
    x = 5,709,360.25/3,540.28
  6. Step 6: Final answer
    x = 1,612.69

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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.