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Finding the Fourth Proportional to 2,222.56, 3,333.04 and 761.32

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Solution

The fourth proportional to 2,222.56, 3,333.04 and 761.32 is: 1,141.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.56 : 3,333.04 = 761.32 : x
  2. Step 2: Convert to fraction form
    2,222.56/3,333.04 = 761.32/x
  3. Step 3: Cross multiply
    2,222.56x = 3,333.04 × 761.32
  4. Step 4: Simplify right side
    2,222.56x = 2,537,510.01
  5. Step 5: Solve for x
    x = 2,537,510.01/2,222.56
  6. Step 6: Final answer
    x = 1,141.71

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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.