Home / 2,619.97-3,929.93-1,646.75

Finding the Fourth Proportional to 2,619.97, 3,929.93 and 1,646.75

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Solution

The fourth proportional to 2,619.97, 3,929.93 and 1,646.75 is: 2,470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.97 : 3,929.93 = 1,646.75 : x
  2. Step 2: Convert to fraction form
    2,619.97/3,929.93 = 1,646.75/x
  3. Step 3: Cross multiply
    2,619.97x = 3,929.93 × 1,646.75
  4. Step 4: Simplify right side
    2,619.97x = 6,471,612.23
  5. Step 5: Solve for x
    x = 6,471,612.23/2,619.97
  6. Step 6: Final answer
    x = 2,470.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.