Home / 5,515.30-8,268.63-3,778.66

Finding the Fourth Proportional to 5,515.30, 8,268.63 and 3,778.66

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Solution

The fourth proportional to 5,515.30, 8,268.63 and 3,778.66 is: 5,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.30 : 8,268.63 = 3,778.66 : x
  2. Step 2: Convert to fraction form
    5,515.30/8,268.63 = 3,778.66/x
  3. Step 3: Cross multiply
    5,515.30x = 8,268.63 × 3,778.66
  4. Step 4: Simplify right side
    5,515.30x = 31,244,341.44
  5. Step 5: Solve for x
    x = 31,244,341.44/5,515.30
  6. Step 6: Final answer
    x = 5,665.03

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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.