Home / 2,278.70-3,418.25-1,669.98

Finding the Fourth Proportional to 2,278.70, 3,418.25 and 1,669.98

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Solution

The fourth proportional to 2,278.70, 3,418.25 and 1,669.98 is: 2,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.70 : 3,418.25 = 1,669.98 : x
  2. Step 2: Convert to fraction form
    2,278.70/3,418.25 = 1,669.98/x
  3. Step 3: Cross multiply
    2,278.70x = 3,418.25 × 1,669.98
  4. Step 4: Simplify right side
    2,278.70x = 5,708,400.79
  5. Step 5: Solve for x
    x = 5,708,400.79/2,278.70
  6. Step 6: Final answer
    x = 2,505.12

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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.