Home / 3,959.82-5,464.47-2,191.32

Finding the Fourth Proportional to 3,959.82, 5,464.47 and 2,191.32

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Solution

The fourth proportional to 3,959.82, 5,464.47 and 2,191.32 is: 3,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.82 : 5,464.47 = 2,191.32 : x
  2. Step 2: Convert to fraction form
    3,959.82/5,464.47 = 2,191.32/x
  3. Step 3: Cross multiply
    3,959.82x = 5,464.47 × 2,191.32
  4. Step 4: Simplify right side
    3,959.82x = 11,974,402.40
  5. Step 5: Solve for x
    x = 11,974,402.40/3,959.82
  6. Step 6: Final answer
    x = 3,023.98

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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.