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Finding the Fourth Proportional to 3,086.67, 4,600.67 and 2,911.53

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Solution

The fourth proportional to 3,086.67, 4,600.67 and 2,911.53 is: 4,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.67 : 4,600.67 = 2,911.53 : x
  2. Step 2: Convert to fraction form
    3,086.67/4,600.67 = 2,911.53/x
  3. Step 3: Cross multiply
    3,086.67x = 4,600.67 × 2,911.53
  4. Step 4: Simplify right side
    3,086.67x = 13,394,974.17
  5. Step 5: Solve for x
    x = 13,394,974.17/3,086.67
  6. Step 6: Final answer
    x = 4,339.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.