Home / 5,379.12-8,067.28-1,482.64

Finding the Fourth Proportional to 5,379.12, 8,067.28 and 1,482.64

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Solution

The fourth proportional to 5,379.12, 8,067.28 and 1,482.64 is: 2,223.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.12 : 8,067.28 = 1,482.64 : x
  2. Step 2: Convert to fraction form
    5,379.12/8,067.28 = 1,482.64/x
  3. Step 3: Cross multiply
    5,379.12x = 8,067.28 × 1,482.64
  4. Step 4: Simplify right side
    5,379.12x = 11,960,872.02
  5. Step 5: Solve for x
    x = 11,960,872.02/5,379.12
  6. Step 6: Final answer
    x = 2,223.57

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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.