Home / 2,222.20-3,332.40-760.60

Finding the Fourth Proportional to 2,222.20, 3,332.40 and 760.60

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Solution

The fourth proportional to 2,222.20, 3,332.40 and 760.60 is: 1,140.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.20 : 3,332.40 = 760.60 : x
  2. Step 2: Convert to fraction form
    2,222.20/3,332.40 = 760.60/x
  3. Step 3: Cross multiply
    2,222.20x = 3,332.40 × 760.60
  4. Step 4: Simplify right side
    2,222.20x = 2,534,623.44
  5. Step 5: Solve for x
    x = 2,534,623.44/2,222.20
  6. Step 6: Final answer
    x = 1,140.59

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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.