Home / 2,222.24-3,333.15-761.40

Finding the Fourth Proportional to 2,222.24, 3,333.15 and 761.40

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Solution

The fourth proportional to 2,222.24, 3,333.15 and 761.40 is: 1,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.24 : 3,333.15 = 761.40 : x
  2. Step 2: Convert to fraction form
    2,222.24/3,333.15 = 761.40/x
  3. Step 3: Cross multiply
    2,222.24x = 3,333.15 × 761.40
  4. Step 4: Simplify right side
    2,222.24x = 2,537,860.41
  5. Step 5: Solve for x
    x = 2,537,860.41/2,222.24
  6. Step 6: Final answer
    x = 1,142.03

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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.