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Finding the Fourth Proportional to 3,468.39, 4,785.82 and 1,976.34

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Solution

The fourth proportional to 3,468.39, 4,785.82 and 1,976.34 is: 2,727.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.39 : 4,785.82 = 1,976.34 : x
  2. Step 2: Convert to fraction form
    3,468.39/4,785.82 = 1,976.34/x
  3. Step 3: Cross multiply
    3,468.39x = 4,785.82 × 1,976.34
  4. Step 4: Simplify right side
    3,468.39x = 9,458,407.50
  5. Step 5: Solve for x
    x = 9,458,407.50/3,468.39
  6. Step 6: Final answer
    x = 2,727.03

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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.