Home / 2,910.11-4,016.11-1,583.78

Finding the Fourth Proportional to 2,910.11, 4,016.11 and 1,583.78

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Solution

The fourth proportional to 2,910.11, 4,016.11 and 1,583.78 is: 2,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.11 : 4,016.11 = 1,583.78 : x
  2. Step 2: Convert to fraction form
    2,910.11/4,016.11 = 1,583.78/x
  3. Step 3: Cross multiply
    2,910.11x = 4,016.11 × 1,583.78
  4. Step 4: Simplify right side
    2,910.11x = 6,360,640.78
  5. Step 5: Solve for x
    x = 6,360,640.78/2,910.11
  6. Step 6: Final answer
    x = 2,185.71

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1.5x scale

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.