Home / 1,879.97-2,594.40-1,217.98

Finding the Fourth Proportional to 1,879.97, 2,594.40 and 1,217.98

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Solution

The fourth proportional to 1,879.97, 2,594.40 and 1,217.98 is: 1,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.97 : 2,594.40 = 1,217.98 : x
  2. Step 2: Convert to fraction form
    1,879.97/2,594.40 = 1,217.98/x
  3. Step 3: Cross multiply
    1,879.97x = 2,594.40 × 1,217.98
  4. Step 4: Simplify right side
    1,879.97x = 3,159,914.34
  5. Step 5: Solve for x
    x = 3,159,914.34/1,879.97
  6. Step 6: Final answer
    x = 1,680.83

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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.