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Finding the Fourth Proportional to 3,601.28, 4,969.77 and 1,945.28

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Solution

The fourth proportional to 3,601.28, 4,969.77 and 1,945.28 is: 2,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.28 : 4,969.77 = 1,945.28 : x
  2. Step 2: Convert to fraction form
    3,601.28/4,969.77 = 1,945.28/x
  3. Step 3: Cross multiply
    3,601.28x = 4,969.77 × 1,945.28
  4. Step 4: Simplify right side
    3,601.28x = 9,667,594.19
  5. Step 5: Solve for x
    x = 9,667,594.19/3,601.28
  6. Step 6: Final answer
    x = 2,684.49

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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.