Home / 3,994.41-5,512.28-2,316.79

Finding the Fourth Proportional to 3,994.41, 5,512.28 and 2,316.79

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Solution

The fourth proportional to 3,994.41, 5,512.28 and 2,316.79 is: 3,197.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.41 : 5,512.28 = 2,316.79 : x
  2. Step 2: Convert to fraction form
    3,994.41/5,512.28 = 2,316.79/x
  3. Step 3: Cross multiply
    3,994.41x = 5,512.28 × 2,316.79
  4. Step 4: Simplify right side
    3,994.41x = 12,770,769.82
  5. Step 5: Solve for x
    x = 12,770,769.82/3,994.41
  6. Step 6: Final answer
    x = 3,197.16

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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.