Home / 3,134.40-4,697.70-2,020.88

Finding the Fourth Proportional to 3,134.40, 4,697.70 and 2,020.88

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Solution

The fourth proportional to 3,134.40, 4,697.70 and 2,020.88 is: 3,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.40 : 4,697.70 = 2,020.88 : x
  2. Step 2: Convert to fraction form
    3,134.40/4,697.70 = 2,020.88/x
  3. Step 3: Cross multiply
    3,134.40x = 4,697.70 × 2,020.88
  4. Step 4: Simplify right side
    3,134.40x = 9,493,487.98
  5. Step 5: Solve for x
    x = 9,493,487.98/3,134.40
  6. Step 6: Final answer
    x = 3,028.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.