Home / 2,928.98-4,042.26-1,669.78

Finding the Fourth Proportional to 2,928.98, 4,042.26 and 1,669.78

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Solution

The fourth proportional to 2,928.98, 4,042.26 and 1,669.78 is: 2,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.98 : 4,042.26 = 1,669.78 : x
  2. Step 2: Convert to fraction form
    2,928.98/4,042.26 = 1,669.78/x
  3. Step 3: Cross multiply
    2,928.98x = 4,042.26 × 1,669.78
  4. Step 4: Simplify right side
    2,928.98x = 6,749,684.90
  5. Step 5: Solve for x
    x = 6,749,684.90/2,928.98
  6. Step 6: Final answer
    x = 2,304.45

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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.