Home / 2,619.48-3,929.19-1,646.25

Finding the Fourth Proportional to 2,619.48, 3,929.19 and 1,646.25

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Solution

The fourth proportional to 2,619.48, 3,929.19 and 1,646.25 is: 2,469.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.48 : 3,929.19 = 1,646.25 : x
  2. Step 2: Convert to fraction form
    2,619.48/3,929.19 = 1,646.25/x
  3. Step 3: Cross multiply
    2,619.48x = 3,929.19 × 1,646.25
  4. Step 4: Simplify right side
    2,619.48x = 6,468,429.04
  5. Step 5: Solve for x
    x = 6,468,429.04/2,619.48
  6. Step 6: Final answer
    x = 2,469.36

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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.