Home / 3,278.30-4,935.94-2,890.79

Finding the Fourth Proportional to 3,278.30, 4,935.94 and 2,890.79

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Solution

The fourth proportional to 3,278.30, 4,935.94 and 2,890.79 is: 4,352.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.30 : 4,935.94 = 2,890.79 : x
  2. Step 2: Convert to fraction form
    3,278.30/4,935.94 = 2,890.79/x
  3. Step 3: Cross multiply
    3,278.30x = 4,935.94 × 2,890.79
  4. Step 4: Simplify right side
    3,278.30x = 14,268,752.60
  5. Step 5: Solve for x
    x = 14,268,752.60/3,278.30
  6. Step 6: Final answer
    x = 4,352.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.