Home / 3,170.28-4,376.52-2,109.81

Finding the Fourth Proportional to 3,170.28, 4,376.52 and 2,109.81

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Solution

The fourth proportional to 3,170.28, 4,376.52 and 2,109.81 is: 2,912.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.28 : 4,376.52 = 2,109.81 : x
  2. Step 2: Convert to fraction form
    3,170.28/4,376.52 = 2,109.81/x
  3. Step 3: Cross multiply
    3,170.28x = 4,376.52 × 2,109.81
  4. Step 4: Simplify right side
    3,170.28x = 9,233,625.66
  5. Step 5: Solve for x
    x = 9,233,625.66/3,170.28
  6. Step 6: Final answer
    x = 2,912.56

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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.