Home / 3,175.36-4,754.83-2,191.21

Finding the Fourth Proportional to 3,175.36, 4,754.83 and 2,191.21

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Solution

The fourth proportional to 3,175.36, 4,754.83 and 2,191.21 is: 3,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.36 : 4,754.83 = 2,191.21 : x
  2. Step 2: Convert to fraction form
    3,175.36/4,754.83 = 2,191.21/x
  3. Step 3: Cross multiply
    3,175.36x = 4,754.83 × 2,191.21
  4. Step 4: Simplify right side
    3,175.36x = 10,418,831.04
  5. Step 5: Solve for x
    x = 10,418,831.04/3,175.36
  6. Step 6: Final answer
    x = 3,281.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.