Home / 3,254.85-4,490.91-1,928.88

Finding the Fourth Proportional to 3,254.85, 4,490.91 and 1,928.88

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Solution

The fourth proportional to 3,254.85, 4,490.91 and 1,928.88 is: 2,661.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.85 : 4,490.91 = 1,928.88 : x
  2. Step 2: Convert to fraction form
    3,254.85/4,490.91 = 1,928.88/x
  3. Step 3: Cross multiply
    3,254.85x = 4,490.91 × 1,928.88
  4. Step 4: Simplify right side
    3,254.85x = 8,662,426.48
  5. Step 5: Solve for x
    x = 8,662,426.48/3,254.85
  6. Step 6: Final answer
    x = 2,661.39

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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.