Home / 1,841.40-2,761.70-1,109.97

Finding the Fourth Proportional to 1,841.40, 2,761.70 and 1,109.97

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Solution

The fourth proportional to 1,841.40, 2,761.70 and 1,109.97 is: 1,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.40 : 2,761.70 = 1,109.97 : x
  2. Step 2: Convert to fraction form
    1,841.40/2,761.70 = 1,109.97/x
  3. Step 3: Cross multiply
    1,841.40x = 2,761.70 × 1,109.97
  4. Step 4: Simplify right side
    1,841.40x = 3,065,398.60
  5. Step 5: Solve for x
    x = 3,065,398.60/1,841.40
  6. Step 6: Final answer
    x = 1,664.71

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1.5x scale

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.