Home / 4,812.12-6,639.42-3,042.84

Finding the Fourth Proportional to 4,812.12, 6,639.42 and 3,042.84

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Solution

The fourth proportional to 4,812.12, 6,639.42 and 3,042.84 is: 4,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.12 : 6,639.42 = 3,042.84 : x
  2. Step 2: Convert to fraction form
    4,812.12/6,639.42 = 3,042.84/x
  3. Step 3: Cross multiply
    4,812.12x = 6,639.42 × 3,042.84
  4. Step 4: Simplify right side
    4,812.12x = 20,202,692.75
  5. Step 5: Solve for x
    x = 20,202,692.75/4,812.12
  6. Step 6: Final answer
    x = 4,198.29

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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.