Home / 3,211.11-4,817.34-1,131.17

Finding the Fourth Proportional to 3,211.11, 4,817.34 and 1,131.17

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Solution

The fourth proportional to 3,211.11, 4,817.34 and 1,131.17 is: 1,696.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.11 : 4,817.34 = 1,131.17 : x
  2. Step 2: Convert to fraction form
    3,211.11/4,817.34 = 1,131.17/x
  3. Step 3: Cross multiply
    3,211.11x = 4,817.34 × 1,131.17
  4. Step 4: Simplify right side
    3,211.11x = 5,449,206.40
  5. Step 5: Solve for x
    x = 5,449,206.40/3,211.11
  6. Step 6: Final answer
    x = 1,696.99

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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.