Home / 2,816.98-4,226.10-869.38

Finding the Fourth Proportional to 2,816.98, 4,226.10 and 869.38

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Solution

The fourth proportional to 2,816.98, 4,226.10 and 869.38 is: 1,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.98 : 4,226.10 = 869.38 : x
  2. Step 2: Convert to fraction form
    2,816.98/4,226.10 = 869.38/x
  3. Step 3: Cross multiply
    2,816.98x = 4,226.10 × 869.38
  4. Step 4: Simplify right side
    2,816.98x = 3,674,086.82
  5. Step 5: Solve for x
    x = 3,674,086.82/2,816.98
  6. Step 6: Final answer
    x = 1,304.26

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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.