Home / 2,529.40-3,797.70-1,982.20

Finding the Fourth Proportional to 2,529.40, 3,797.70 and 1,982.20

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Solution

The fourth proportional to 2,529.40, 3,797.70 and 1,982.20 is: 2,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.40 : 3,797.70 = 1,982.20 : x
  2. Step 2: Convert to fraction form
    2,529.40/3,797.70 = 1,982.20/x
  3. Step 3: Cross multiply
    2,529.40x = 3,797.70 × 1,982.20
  4. Step 4: Simplify right side
    2,529.40x = 7,527,800.94
  5. Step 5: Solve for x
    x = 7,527,800.94/2,529.40
  6. Step 6: Final answer
    x = 2,976.12

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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.