Home / 4,520.82-6,778.80-1,399.49

Finding the Fourth Proportional to 4,520.82, 6,778.80 and 1,399.49

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Solution

The fourth proportional to 4,520.82, 6,778.80 and 1,399.49 is: 2,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.82 : 6,778.80 = 1,399.49 : x
  2. Step 2: Convert to fraction form
    4,520.82/6,778.80 = 1,399.49/x
  3. Step 3: Cross multiply
    4,520.82x = 6,778.80 × 1,399.49
  4. Step 4: Simplify right side
    4,520.82x = 9,486,854.34
  5. Step 5: Solve for x
    x = 9,486,854.34/4,520.82
  6. Step 6: Final answer
    x = 2,098.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.