Home / 3,959.65-5,464.23-2,191.28

Finding the Fourth Proportional to 3,959.65, 5,464.23 and 2,191.28

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Solution

The fourth proportional to 3,959.65, 5,464.23 and 2,191.28 is: 3,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.65 : 5,464.23 = 2,191.28 : x
  2. Step 2: Convert to fraction form
    3,959.65/5,464.23 = 2,191.28/x
  3. Step 3: Cross multiply
    3,959.65x = 5,464.23 × 2,191.28
  4. Step 4: Simplify right side
    3,959.65x = 11,973,657.91
  5. Step 5: Solve for x
    x = 11,973,657.91/3,959.65
  6. Step 6: Final answer
    x = 3,023.92

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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.