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Finding the Fourth Proportional to 1,610.26, 2,222.22 and 911.64

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Solution

The fourth proportional to 1,610.26, 2,222.22 and 911.64 is: 1,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.26 : 2,222.22 = 911.64 : x
  2. Step 2: Convert to fraction form
    1,610.26/2,222.22 = 911.64/x
  3. Step 3: Cross multiply
    1,610.26x = 2,222.22 × 911.64
  4. Step 4: Simplify right side
    1,610.26x = 2,025,864.64
  5. Step 5: Solve for x
    x = 2,025,864.64/1,610.26
  6. Step 6: Final answer
    x = 1,258.10

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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.