Home / 6,171.31-8,517.99-3,812.10

Finding the Fourth Proportional to 6,171.31, 8,517.99 and 3,812.10

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Solution

The fourth proportional to 6,171.31, 8,517.99 and 3,812.10 is: 5,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,171.31 : 8,517.99 = 3,812.10 : x
  2. Step 2: Convert to fraction form
    6,171.31/8,517.99 = 3,812.10/x
  3. Step 3: Cross multiply
    6,171.31x = 8,517.99 × 3,812.10
  4. Step 4: Simplify right side
    6,171.31x = 32,471,429.68
  5. Step 5: Solve for x
    x = 32,471,429.68/6,171.31
  6. Step 6: Final answer
    x = 5,261.68

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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.