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Finding the Fourth Proportional to 2,777.22, 4,165.83 and 829.27

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Solution

The fourth proportional to 2,777.22, 4,165.83 and 829.27 is: 1,243.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.22 : 4,165.83 = 829.27 : x
  2. Step 2: Convert to fraction form
    2,777.22/4,165.83 = 829.27/x
  3. Step 3: Cross multiply
    2,777.22x = 4,165.83 × 829.27
  4. Step 4: Simplify right side
    2,777.22x = 3,454,603.05
  5. Step 5: Solve for x
    x = 3,454,603.05/2,777.22
  6. Step 6: Final answer
    x = 1,243.91

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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.