Home / 2,179.80-3,008.70-1,295.82

Finding the Fourth Proportional to 2,179.80, 3,008.70 and 1,295.82

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Solution

The fourth proportional to 2,179.80, 3,008.70 and 1,295.82 is: 1,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.80 : 3,008.70 = 1,295.82 : x
  2. Step 2: Convert to fraction form
    2,179.80/3,008.70 = 1,295.82/x
  3. Step 3: Cross multiply
    2,179.80x = 3,008.70 × 1,295.82
  4. Step 4: Simplify right side
    2,179.80x = 3,898,733.63
  5. Step 5: Solve for x
    x = 3,898,733.63/2,179.80
  6. Step 6: Final answer
    x = 1,788.57

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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.