Home / 2,222.22-3,334.10-989.74

Finding the Fourth Proportional to 2,222.22, 3,334.10 and 989.74

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Solution

The fourth proportional to 2,222.22, 3,334.10 and 989.74 is: 1,484.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.22 : 3,334.10 = 989.74 : x
  2. Step 2: Convert to fraction form
    2,222.22/3,334.10 = 989.74/x
  3. Step 3: Cross multiply
    2,222.22x = 3,334.10 × 989.74
  4. Step 4: Simplify right side
    2,222.22x = 3,299,892.13
  5. Step 5: Solve for x
    x = 3,299,892.13/2,222.22
  6. Step 6: Final answer
    x = 1,484.95

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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.