Home / 2,211.36-3,317.26-806.16

Finding the Fourth Proportional to 2,211.36, 3,317.26 and 806.16

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Solution

The fourth proportional to 2,211.36, 3,317.26 and 806.16 is: 1,209.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.36 : 3,317.26 = 806.16 : x
  2. Step 2: Convert to fraction form
    2,211.36/3,317.26 = 806.16/x
  3. Step 3: Cross multiply
    2,211.36x = 3,317.26 × 806.16
  4. Step 4: Simplify right side
    2,211.36x = 2,674,240.31
  5. Step 5: Solve for x
    x = 2,674,240.31/2,211.36
  6. Step 6: Final answer
    x = 1,209.32

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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.