Home / 3,540.48-5,310.56-1,075.28

Finding the Fourth Proportional to 3,540.48, 5,310.56 and 1,075.28

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Solution

The fourth proportional to 3,540.48, 5,310.56 and 1,075.28 is: 1,612.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.48 : 5,310.56 = 1,075.28 : x
  2. Step 2: Convert to fraction form
    3,540.48/5,310.56 = 1,075.28/x
  3. Step 3: Cross multiply
    3,540.48x = 5,310.56 × 1,075.28
  4. Step 4: Simplify right side
    3,540.48x = 5,710,338.96
  5. Step 5: Solve for x
    x = 5,710,338.96/3,540.48
  6. Step 6: Final answer
    x = 1,612.87

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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.