Home / 2,225.40-3,334.44-990.96

Finding the Fourth Proportional to 2,225.40, 3,334.44 and 990.96

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Solution

The fourth proportional to 2,225.40, 3,334.44 and 990.96 is: 1,484.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.40 : 3,334.44 = 990.96 : x
  2. Step 2: Convert to fraction form
    2,225.40/3,334.44 = 990.96/x
  3. Step 3: Cross multiply
    2,225.40x = 3,334.44 × 990.96
  4. Step 4: Simplify right side
    2,225.40x = 3,304,296.66
  5. Step 5: Solve for x
    x = 3,304,296.66/2,225.40
  6. Step 6: Final answer
    x = 1,484.81

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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.