Home / 3,959.74-5,464.29-2,191.31

Finding the Fourth Proportional to 3,959.74, 5,464.29 and 2,191.31

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Solution

The fourth proportional to 3,959.74, 5,464.29 and 2,191.31 is: 3,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.74 : 5,464.29 = 2,191.31 : x
  2. Step 2: Convert to fraction form
    3,959.74/5,464.29 = 2,191.31/x
  3. Step 3: Cross multiply
    3,959.74x = 5,464.29 × 2,191.31
  4. Step 4: Simplify right side
    3,959.74x = 11,973,953.32
  5. Step 5: Solve for x
    x = 11,973,953.32/3,959.74
  6. Step 6: Final answer
    x = 3,023.92

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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.