Home / 7,021.26-9,689.22-3,877.38

Finding the Fourth Proportional to 7,021.26, 9,689.22 and 3,877.38

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Solution

The fourth proportional to 7,021.26, 9,689.22 and 3,877.38 is: 5,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.26 : 9,689.22 = 3,877.38 : x
  2. Step 2: Convert to fraction form
    7,021.26/9,689.22 = 3,877.38/x
  3. Step 3: Cross multiply
    7,021.26x = 9,689.22 × 3,877.38
  4. Step 4: Simplify right side
    7,021.26x = 37,568,787.84
  5. Step 5: Solve for x
    x = 37,568,787.84/7,021.26
  6. Step 6: Final answer
    x = 5,350.72

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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.