Home / 3,959.55-5,464.09-2,191.12

Finding the Fourth Proportional to 3,959.55, 5,464.09 and 2,191.12

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Solution

The fourth proportional to 3,959.55, 5,464.09 and 2,191.12 is: 3,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.55 : 5,464.09 = 2,191.12 : x
  2. Step 2: Convert to fraction form
    3,959.55/5,464.09 = 2,191.12/x
  3. Step 3: Cross multiply
    3,959.55x = 5,464.09 × 2,191.12
  4. Step 4: Simplify right side
    3,959.55x = 11,972,465.96
  5. Step 5: Solve for x
    x = 11,972,465.96/3,959.55
  6. Step 6: Final answer
    x = 3,023.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.