Home / 3,102.12-4,286.79-2,354.76

Finding the Fourth Proportional to 3,102.12, 4,286.79 and 2,354.76

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Solution

The fourth proportional to 3,102.12, 4,286.79 and 2,354.76 is: 3,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.12 : 4,286.79 = 2,354.76 : x
  2. Step 2: Convert to fraction form
    3,102.12/4,286.79 = 2,354.76/x
  3. Step 3: Cross multiply
    3,102.12x = 4,286.79 × 2,354.76
  4. Step 4: Simplify right side
    3,102.12x = 10,094,361.62
  5. Step 5: Solve for x
    x = 10,094,361.62/3,102.12
  6. Step 6: Final answer
    x = 3,254.02

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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.