Home / 2,873.58-3,960.78-2,242.86

Finding the Fourth Proportional to 2,873.58, 3,960.78 and 2,242.86

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Solution

The fourth proportional to 2,873.58, 3,960.78 and 2,242.86 is: 3,091.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.58 : 3,960.78 = 2,242.86 : x
  2. Step 2: Convert to fraction form
    2,873.58/3,960.78 = 2,242.86/x
  3. Step 3: Cross multiply
    2,873.58x = 3,960.78 × 2,242.86
  4. Step 4: Simplify right side
    2,873.58x = 8,883,475.03
  5. Step 5: Solve for x
    x = 8,883,475.03/2,873.58
  6. Step 6: Final answer
    x = 3,091.43

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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.