Home / 5,479.31-8,218.16-2,015.75

Finding the Fourth Proportional to 5,479.31, 8,218.16 and 2,015.75

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Solution

The fourth proportional to 5,479.31, 8,218.16 and 2,015.75 is: 3,023.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.31 : 8,218.16 = 2,015.75 : x
  2. Step 2: Convert to fraction form
    5,479.31/8,218.16 = 2,015.75/x
  3. Step 3: Cross multiply
    5,479.31x = 8,218.16 × 2,015.75
  4. Step 4: Simplify right side
    5,479.31x = 16,565,745.94
  5. Step 5: Solve for x
    x = 16,565,745.94/5,479.31
  6. Step 6: Final answer
    x = 3,023.33

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1.5x scale

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.