Home / 2,958.03-4,080.78-2,170.71

Finding the Fourth Proportional to 2,958.03, 4,080.78 and 2,170.71

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Solution

The fourth proportional to 2,958.03, 4,080.78 and 2,170.71 is: 2,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.03 : 4,080.78 = 2,170.71 : x
  2. Step 2: Convert to fraction form
    2,958.03/4,080.78 = 2,170.71/x
  3. Step 3: Cross multiply
    2,958.03x = 4,080.78 × 2,170.71
  4. Step 4: Simplify right side
    2,958.03x = 8,858,189.95
  5. Step 5: Solve for x
    x = 8,858,189.95/2,958.03
  6. Step 6: Final answer
    x = 2,994.62

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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.