Home / 2,087.06-3,146.20-1,949.56

Finding the Fourth Proportional to 2,087.06, 3,146.20 and 1,949.56

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Solution

The fourth proportional to 2,087.06, 3,146.20 and 1,949.56 is: 2,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.06 : 3,146.20 = 1,949.56 : x
  2. Step 2: Convert to fraction form
    2,087.06/3,146.20 = 1,949.56/x
  3. Step 3: Cross multiply
    2,087.06x = 3,146.20 × 1,949.56
  4. Step 4: Simplify right side
    2,087.06x = 6,133,705.67
  5. Step 5: Solve for x
    x = 6,133,705.67/2,087.06
  6. Step 6: Final answer
    x = 2,938.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.