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Finding the Fourth Proportional to 4,338.95, 5,986.14 and 2,847.70

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Solution

The fourth proportional to 4,338.95, 5,986.14 and 2,847.70 is: 3,928.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,338.95 : 5,986.14 = 2,847.70 : x
  2. Step 2: Convert to fraction form
    4,338.95/5,986.14 = 2,847.70/x
  3. Step 3: Cross multiply
    4,338.95x = 5,986.14 × 2,847.70
  4. Step 4: Simplify right side
    4,338.95x = 17,046,730.88
  5. Step 5: Solve for x
    x = 17,046,730.88/4,338.95
  6. Step 6: Final answer
    x = 3,928.77

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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.