Home / 3,254.30-4,490.94-1,928.66

Finding the Fourth Proportional to 3,254.30, 4,490.94 and 1,928.66

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Solution

The fourth proportional to 3,254.30, 4,490.94 and 1,928.66 is: 2,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.30 : 4,490.94 = 1,928.66 : x
  2. Step 2: Convert to fraction form
    3,254.30/4,490.94 = 1,928.66/x
  3. Step 3: Cross multiply
    3,254.30x = 4,490.94 × 1,928.66
  4. Step 4: Simplify right side
    3,254.30x = 8,661,496.34
  5. Step 5: Solve for x
    x = 8,661,496.34/3,254.30
  6. Step 6: Final answer
    x = 2,661.55

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1.5x scale

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.