Home / 3,720.91-5,576.80-2,239.21

Finding the Fourth Proportional to 3,720.91, 5,576.80 and 2,239.21

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Solution

The fourth proportional to 3,720.91, 5,576.80 and 2,239.21 is: 3,356.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.91 : 5,576.80 = 2,239.21 : x
  2. Step 2: Convert to fraction form
    3,720.91/5,576.80 = 2,239.21/x
  3. Step 3: Cross multiply
    3,720.91x = 5,576.80 × 2,239.21
  4. Step 4: Simplify right side
    3,720.91x = 12,487,626.33
  5. Step 5: Solve for x
    x = 12,487,626.33/3,720.91
  6. Step 6: Final answer
    x = 3,356.07

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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.