Home / 3,160.94-4,364.15-2,828.79

Finding the Fourth Proportional to 3,160.94, 4,364.15 and 2,828.79

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Solution

The fourth proportional to 3,160.94, 4,364.15 and 2,828.79 is: 3,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.94 : 4,364.15 = 2,828.79 : x
  2. Step 2: Convert to fraction form
    3,160.94/4,364.15 = 2,828.79/x
  3. Step 3: Cross multiply
    3,160.94x = 4,364.15 × 2,828.79
  4. Step 4: Simplify right side
    3,160.94x = 12,345,249.73
  5. Step 5: Solve for x
    x = 12,345,249.73/3,160.94
  6. Step 6: Final answer
    x = 3,905.57

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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.