Home / 5,387.08-8,075.82-2,102.44

Finding the Fourth Proportional to 5,387.08, 8,075.82 and 2,102.44

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Solution

The fourth proportional to 5,387.08, 8,075.82 and 2,102.44 is: 3,151.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.08 : 8,075.82 = 2,102.44 : x
  2. Step 2: Convert to fraction form
    5,387.08/8,075.82 = 2,102.44/x
  3. Step 3: Cross multiply
    5,387.08x = 8,075.82 × 2,102.44
  4. Step 4: Simplify right side
    5,387.08x = 16,978,927.00
  5. Step 5: Solve for x
    x = 16,978,927.00/5,387.08
  6. Step 6: Final answer
    x = 3,151.79

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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.