Home / 2,825.80-4,233.30-2,631.40

Finding the Fourth Proportional to 2,825.80, 4,233.30 and 2,631.40

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Solution

The fourth proportional to 2,825.80, 4,233.30 and 2,631.40 is: 3,942.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.80 : 4,233.30 = 2,631.40 : x
  2. Step 2: Convert to fraction form
    2,825.80/4,233.30 = 2,631.40/x
  3. Step 3: Cross multiply
    2,825.80x = 4,233.30 × 2,631.40
  4. Step 4: Simplify right side
    2,825.80x = 11,139,505.62
  5. Step 5: Solve for x
    x = 11,139,505.62/2,825.80
  6. Step 6: Final answer
    x = 3,942.07

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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.