Home / 3,270.79-4,513.67-1,778.70

Finding the Fourth Proportional to 3,270.79, 4,513.67 and 1,778.70

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Solution

The fourth proportional to 3,270.79, 4,513.67 and 1,778.70 is: 2,454.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.79 : 4,513.67 = 1,778.70 : x
  2. Step 2: Convert to fraction form
    3,270.79/4,513.67 = 1,778.70/x
  3. Step 3: Cross multiply
    3,270.79x = 4,513.67 × 1,778.70
  4. Step 4: Simplify right side
    3,270.79x = 8,028,464.83
  5. Step 5: Solve for x
    x = 8,028,464.83/3,270.79
  6. Step 6: Final answer
    x = 2,454.60

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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.