Home / 3,254.48-4,490.39-1,928.51

Finding the Fourth Proportional to 3,254.48, 4,490.39 and 1,928.51

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Solution

The fourth proportional to 3,254.48, 4,490.39 and 1,928.51 is: 2,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.48 : 4,490.39 = 1,928.51 : x
  2. Step 2: Convert to fraction form
    3,254.48/4,490.39 = 1,928.51/x
  3. Step 3: Cross multiply
    3,254.48x = 4,490.39 × 1,928.51
  4. Step 4: Simplify right side
    3,254.48x = 8,659,744.39
  5. Step 5: Solve for x
    x = 8,659,744.39/3,254.48
  6. Step 6: Final answer
    x = 2,660.87

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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.