Home / 2,121.62-3,176.25-1,576.22

Finding the Fourth Proportional to 2,121.62, 3,176.25 and 1,576.22

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Solution

The fourth proportional to 2,121.62, 3,176.25 and 1,576.22 is: 2,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.62 : 3,176.25 = 1,576.22 : x
  2. Step 2: Convert to fraction form
    2,121.62/3,176.25 = 1,576.22/x
  3. Step 3: Cross multiply
    2,121.62x = 3,176.25 × 1,576.22
  4. Step 4: Simplify right side
    2,121.62x = 5,006,468.78
  5. Step 5: Solve for x
    x = 5,006,468.78/2,121.62
  6. Step 6: Final answer
    x = 2,359.74

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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.