Home / 3,254.49-4,490.56-1,928.45

Finding the Fourth Proportional to 3,254.49, 4,490.56 and 1,928.45

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Solution

The fourth proportional to 3,254.49, 4,490.56 and 1,928.45 is: 2,660.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.49 : 4,490.56 = 1,928.45 : x
  2. Step 2: Convert to fraction form
    3,254.49/4,490.56 = 1,928.45/x
  3. Step 3: Cross multiply
    3,254.49x = 4,490.56 × 1,928.45
  4. Step 4: Simplify right side
    3,254.49x = 8,659,820.43
  5. Step 5: Solve for x
    x = 8,659,820.43/3,254.49
  6. Step 6: Final answer
    x = 2,660.88

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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.