Home / 3,458.85-5,188.62-1,268.20

Finding the Fourth Proportional to 3,458.85, 5,188.62 and 1,268.20

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Solution

The fourth proportional to 3,458.85, 5,188.62 and 1,268.20 is: 1,902.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.85 : 5,188.62 = 1,268.20 : x
  2. Step 2: Convert to fraction form
    3,458.85/5,188.62 = 1,268.20/x
  3. Step 3: Cross multiply
    3,458.85x = 5,188.62 × 1,268.20
  4. Step 4: Simplify right side
    3,458.85x = 6,580,219.13
  5. Step 5: Solve for x
    x = 6,580,219.13/3,458.85
  6. Step 6: Final answer
    x = 1,902.43

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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.