Home / 5,240.80-7,231.70-2,882.80

Finding the Fourth Proportional to 5,240.80, 7,231.70 and 2,882.80

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Solution

The fourth proportional to 5,240.80, 7,231.70 and 2,882.80 is: 3,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.80 : 7,231.70 = 2,882.80 : x
  2. Step 2: Convert to fraction form
    5,240.80/7,231.70 = 2,882.80/x
  3. Step 3: Cross multiply
    5,240.80x = 7,231.70 × 2,882.80
  4. Step 4: Simplify right side
    5,240.80x = 20,847,544.76
  5. Step 5: Solve for x
    x = 20,847,544.76/5,240.80
  6. Step 6: Final answer
    x = 3,977.93

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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.