Home / 3,380.95-4,664.47-2,122.05

Finding the Fourth Proportional to 3,380.95, 4,664.47 and 2,122.05

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Solution

The fourth proportional to 3,380.95, 4,664.47 and 2,122.05 is: 2,927.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.95 : 4,664.47 = 2,122.05 : x
  2. Step 2: Convert to fraction form
    3,380.95/4,664.47 = 2,122.05/x
  3. Step 3: Cross multiply
    3,380.95x = 4,664.47 × 2,122.05
  4. Step 4: Simplify right side
    3,380.95x = 9,898,238.56
  5. Step 5: Solve for x
    x = 9,898,238.56/3,380.95
  6. Step 6: Final answer
    x = 2,927.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.