Home / 2,122.41-3,180.25-1,426.52

Finding the Fourth Proportional to 2,122.41, 3,180.25 and 1,426.52

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Solution

The fourth proportional to 2,122.41, 3,180.25 and 1,426.52 is: 2,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.41 : 3,180.25 = 1,426.52 : x
  2. Step 2: Convert to fraction form
    2,122.41/3,180.25 = 1,426.52/x
  3. Step 3: Cross multiply
    2,122.41x = 3,180.25 × 1,426.52
  4. Step 4: Simplify right side
    2,122.41x = 4,536,674.05
  5. Step 5: Solve for x
    x = 4,536,674.05/2,122.41
  6. Step 6: Final answer
    x = 2,137.51

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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.