Home / 3,959.95-5,464.76-2,191.62

Finding the Fourth Proportional to 3,959.95, 5,464.76 and 2,191.62

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Solution

The fourth proportional to 3,959.95, 5,464.76 and 2,191.62 is: 3,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.95 : 5,464.76 = 2,191.62 : x
  2. Step 2: Convert to fraction form
    3,959.95/5,464.76 = 2,191.62/x
  3. Step 3: Cross multiply
    3,959.95x = 5,464.76 × 2,191.62
  4. Step 4: Simplify right side
    3,959.95x = 11,976,677.31
  5. Step 5: Solve for x
    x = 11,976,677.31/3,959.95
  6. Step 6: Final answer
    x = 3,024.45

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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.