Home / 5,375.02-8,064.84-2,779.78

Finding the Fourth Proportional to 5,375.02, 8,064.84 and 2,779.78

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Solution

The fourth proportional to 5,375.02, 8,064.84 and 2,779.78 is: 4,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.02 : 8,064.84 = 2,779.78 : x
  2. Step 2: Convert to fraction form
    5,375.02/8,064.84 = 2,779.78/x
  3. Step 3: Cross multiply
    5,375.02x = 8,064.84 × 2,779.78
  4. Step 4: Simplify right side
    5,375.02x = 22,418,480.94
  5. Step 5: Solve for x
    x = 22,418,480.94/5,375.02
  6. Step 6: Final answer
    x = 4,170.86

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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.