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Finding the Fourth Proportional to 3,517.96, 4,854.86 and 1,946.12

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Solution

The fourth proportional to 3,517.96, 4,854.86 and 1,946.12 is: 2,685.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.96 : 4,854.86 = 1,946.12 : x
  2. Step 2: Convert to fraction form
    3,517.96/4,854.86 = 1,946.12/x
  3. Step 3: Cross multiply
    3,517.96x = 4,854.86 × 1,946.12
  4. Step 4: Simplify right side
    3,517.96x = 9,448,140.14
  5. Step 5: Solve for x
    x = 9,448,140.14/3,517.96
  6. Step 6: Final answer
    x = 2,685.69

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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.