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Finding the Fourth Proportional to 1,556.72, 2,334.39 and 826.13

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Solution

The fourth proportional to 1,556.72, 2,334.39 and 826.13 is: 1,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.72 : 2,334.39 = 826.13 : x
  2. Step 2: Convert to fraction form
    1,556.72/2,334.39 = 826.13/x
  3. Step 3: Cross multiply
    1,556.72x = 2,334.39 × 826.13
  4. Step 4: Simplify right side
    1,556.72x = 1,928,497.94
  5. Step 5: Solve for x
    x = 1,928,497.94/1,556.72
  6. Step 6: Final answer
    x = 1,238.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.