Home / 5,240.44-7,857.18-2,075.78

Finding the Fourth Proportional to 5,240.44, 7,857.18 and 2,075.78

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Solution

The fourth proportional to 5,240.44, 7,857.18 and 2,075.78 is: 3,112.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.44 : 7,857.18 = 2,075.78 : x
  2. Step 2: Convert to fraction form
    5,240.44/7,857.18 = 2,075.78/x
  3. Step 3: Cross multiply
    5,240.44x = 7,857.18 × 2,075.78
  4. Step 4: Simplify right side
    5,240.44x = 16,309,777.10
  5. Step 5: Solve for x
    x = 16,309,777.10/5,240.44
  6. Step 6: Final answer
    x = 3,112.29

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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.