Home / 4,076.80-5,617.91-2,894.56

Finding the Fourth Proportional to 4,076.80, 5,617.91 and 2,894.56

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Solution

The fourth proportional to 4,076.80, 5,617.91 and 2,894.56 is: 3,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,076.80 : 5,617.91 = 2,894.56 : x
  2. Step 2: Convert to fraction form
    4,076.80/5,617.91 = 2,894.56/x
  3. Step 3: Cross multiply
    4,076.80x = 5,617.91 × 2,894.56
  4. Step 4: Simplify right side
    4,076.80x = 16,261,377.57
  5. Step 5: Solve for x
    x = 16,261,377.57/4,076.80
  6. Step 6: Final answer
    x = 3,988.76

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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.