Home / 2,222.12-3,331.56-760.88

Finding the Fourth Proportional to 2,222.12, 3,331.56 and 760.88

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Solution

The fourth proportional to 2,222.12, 3,331.56 and 760.88 is: 1,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.12 : 3,331.56 = 760.88 : x
  2. Step 2: Convert to fraction form
    2,222.12/3,331.56 = 760.88/x
  3. Step 3: Cross multiply
    2,222.12x = 3,331.56 × 760.88
  4. Step 4: Simplify right side
    2,222.12x = 2,534,917.37
  5. Step 5: Solve for x
    x = 2,534,917.37/2,222.12
  6. Step 6: Final answer
    x = 1,140.77

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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.