Home / 3,270.98-4,513.96-1,778.90

Finding the Fourth Proportional to 3,270.98, 4,513.96 and 1,778.90

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Solution

The fourth proportional to 3,270.98, 4,513.96 and 1,778.90 is: 2,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.98 : 4,513.96 = 1,778.90 : x
  2. Step 2: Convert to fraction form
    3,270.98/4,513.96 = 1,778.90/x
  3. Step 3: Cross multiply
    3,270.98x = 4,513.96 × 1,778.90
  4. Step 4: Simplify right side
    3,270.98x = 8,029,883.44
  5. Step 5: Solve for x
    x = 8,029,883.44/3,270.98
  6. Step 6: Final answer
    x = 2,454.89

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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.