Home / 2,820.46-4,232.10-2,131.33

Finding the Fourth Proportional to 2,820.46, 4,232.10 and 2,131.33

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Solution

The fourth proportional to 2,820.46, 4,232.10 and 2,131.33 is: 3,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.46 : 4,232.10 = 2,131.33 : x
  2. Step 2: Convert to fraction form
    2,820.46/4,232.10 = 2,131.33/x
  3. Step 3: Cross multiply
    2,820.46x = 4,232.10 × 2,131.33
  4. Step 4: Simplify right side
    2,820.46x = 9,020,001.69
  5. Step 5: Solve for x
    x = 9,020,001.69/2,820.46
  6. Step 6: Final answer
    x = 3,198.06

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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.