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Finding the Fourth Proportional to 3,601.75, 4,970.42 and 1,945.75

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Solution

The fourth proportional to 3,601.75, 4,970.42 and 1,945.75 is: 2,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.75 : 4,970.42 = 1,945.75 : x
  2. Step 2: Convert to fraction form
    3,601.75/4,970.42 = 1,945.75/x
  3. Step 3: Cross multiply
    3,601.75x = 4,970.42 × 1,945.75
  4. Step 4: Simplify right side
    3,601.75x = 9,671,194.72
  5. Step 5: Solve for x
    x = 9,671,194.72/3,601.75
  6. Step 6: Final answer
    x = 2,685.14

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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.