Home / 2,776.23-4,165.04-828.43

Finding the Fourth Proportional to 2,776.23, 4,165.04 and 828.43

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Solution

The fourth proportional to 2,776.23, 4,165.04 and 828.43 is: 1,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.23 : 4,165.04 = 828.43 : x
  2. Step 2: Convert to fraction form
    2,776.23/4,165.04 = 828.43/x
  3. Step 3: Cross multiply
    2,776.23x = 4,165.04 × 828.43
  4. Step 4: Simplify right side
    2,776.23x = 3,450,435.75
  5. Step 5: Solve for x
    x = 3,450,435.75/2,776.23
  6. Step 6: Final answer
    x = 1,242.85

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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.