Home / 2,479.23-3,419.06-1,917.90

Finding the Fourth Proportional to 2,479.23, 3,419.06 and 1,917.90

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Solution

The fourth proportional to 2,479.23, 3,419.06 and 1,917.90 is: 2,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.23 : 3,419.06 = 1,917.90 : x
  2. Step 2: Convert to fraction form
    2,479.23/3,419.06 = 1,917.90/x
  3. Step 3: Cross multiply
    2,479.23x = 3,419.06 × 1,917.90
  4. Step 4: Simplify right side
    2,479.23x = 6,557,405.58
  5. Step 5: Solve for x
    x = 6,557,405.58/2,479.23
  6. Step 6: Final answer
    x = 2,644.94

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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.