Home / 3,278.73-4,520.71-2,679.01

Finding the Fourth Proportional to 3,278.73, 4,520.71 and 2,679.01

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Solution

The fourth proportional to 3,278.73, 4,520.71 and 2,679.01 is: 3,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.73 : 4,520.71 = 2,679.01 : x
  2. Step 2: Convert to fraction form
    3,278.73/4,520.71 = 2,679.01/x
  3. Step 3: Cross multiply
    3,278.73x = 4,520.71 × 2,679.01
  4. Step 4: Simplify right side
    3,278.73x = 12,111,004.69
  5. Step 5: Solve for x
    x = 12,111,004.69/3,278.73
  6. Step 6: Final answer
    x = 3,693.81

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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.