Home / 2,621.40-3,932.82-2,133.24

Finding the Fourth Proportional to 2,621.40, 3,932.82 and 2,133.24

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Solution

The fourth proportional to 2,621.40, 3,932.82 and 2,133.24 is: 3,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.40 : 3,932.82 = 2,133.24 : x
  2. Step 2: Convert to fraction form
    2,621.40/3,932.82 = 2,133.24/x
  3. Step 3: Cross multiply
    2,621.40x = 3,932.82 × 2,133.24
  4. Step 4: Simplify right side
    2,621.40x = 8,389,648.94
  5. Step 5: Solve for x
    x = 8,389,648.94/2,621.40
  6. Step 6: Final answer
    x = 3,200.45

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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.