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Finding the Fourth Proportional to 3,062.70, 4,227.19 and 1,945.17

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Solution

The fourth proportional to 3,062.70, 4,227.19 and 1,945.17 is: 2,684.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.70 : 4,227.19 = 1,945.17 : x
  2. Step 2: Convert to fraction form
    3,062.70/4,227.19 = 1,945.17/x
  3. Step 3: Cross multiply
    3,062.70x = 4,227.19 × 1,945.17
  4. Step 4: Simplify right side
    3,062.70x = 8,222,598.31
  5. Step 5: Solve for x
    x = 8,222,598.31/3,062.70
  6. Step 6: Final answer
    x = 2,684.75

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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.