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Finding the Fourth Proportional to 3,947.07, 5,446.53 and 2,268.09

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Solution

The fourth proportional to 3,947.07, 5,446.53 and 2,268.09 is: 3,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.07 : 5,446.53 = 2,268.09 : x
  2. Step 2: Convert to fraction form
    3,947.07/5,446.53 = 2,268.09/x
  3. Step 3: Cross multiply
    3,947.07x = 5,446.53 × 2,268.09
  4. Step 4: Simplify right side
    3,947.07x = 12,353,220.23
  5. Step 5: Solve for x
    x = 12,353,220.23/3,947.07
  6. Step 6: Final answer
    x = 3,129.72

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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.