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Finding the Fourth Proportional to 4,886.67, 6,743.07 and 2,790.39

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Solution

The fourth proportional to 4,886.67, 6,743.07 and 2,790.39 is: 3,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,886.67 : 6,743.07 = 2,790.39 : x
  2. Step 2: Convert to fraction form
    4,886.67/6,743.07 = 2,790.39/x
  3. Step 3: Cross multiply
    4,886.67x = 6,743.07 × 2,790.39
  4. Step 4: Simplify right side
    4,886.67x = 18,815,795.10
  5. Step 5: Solve for x
    x = 18,815,795.10/4,886.67
  6. Step 6: Final answer
    x = 3,850.43

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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.