Home / 3,220.93-4,453.01-2,380.31

Finding the Fourth Proportional to 3,220.93, 4,453.01 and 2,380.31

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Solution

The fourth proportional to 3,220.93, 4,453.01 and 2,380.31 is: 3,290.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.93 : 4,453.01 = 2,380.31 : x
  2. Step 2: Convert to fraction form
    3,220.93/4,453.01 = 2,380.31/x
  3. Step 3: Cross multiply
    3,220.93x = 4,453.01 × 2,380.31
  4. Step 4: Simplify right side
    3,220.93x = 10,599,510.07
  5. Step 5: Solve for x
    x = 10,599,510.07/3,220.93
  6. Step 6: Final answer
    x = 3,290.83

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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.