Home / 2,619.52-3,930.56-1,646.08

Finding the Fourth Proportional to 2,619.52, 3,930.56 and 1,646.08

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Solution

The fourth proportional to 2,619.52, 3,930.56 and 1,646.08 is: 2,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.52 : 3,930.56 = 1,646.08 : x
  2. Step 2: Convert to fraction form
    2,619.52/3,930.56 = 1,646.08/x
  3. Step 3: Cross multiply
    2,619.52x = 3,930.56 × 1,646.08
  4. Step 4: Simplify right side
    2,619.52x = 6,470,016.20
  5. Step 5: Solve for x
    x = 6,470,016.20/2,619.52
  6. Step 6: Final answer
    x = 2,469.92

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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.