Home / 3,071.73-4,238.98-1,674.48

Finding the Fourth Proportional to 3,071.73, 4,238.98 and 1,674.48

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Solution

The fourth proportional to 3,071.73, 4,238.98 and 1,674.48 is: 2,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.73 : 4,238.98 = 1,674.48 : x
  2. Step 2: Convert to fraction form
    3,071.73/4,238.98 = 1,674.48/x
  3. Step 3: Cross multiply
    3,071.73x = 4,238.98 × 1,674.48
  4. Step 4: Simplify right side
    3,071.73x = 7,098,078.86
  5. Step 5: Solve for x
    x = 7,098,078.86/3,071.73
  6. Step 6: Final answer
    x = 2,310.78

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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.