Home / 3,715.14-5,120.61-3,083.64

Finding the Fourth Proportional to 3,715.14, 5,120.61 and 3,083.64

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Solution

The fourth proportional to 3,715.14, 5,120.61 and 3,083.64 is: 4,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.14 : 5,120.61 = 3,083.64 : x
  2. Step 2: Convert to fraction form
    3,715.14/5,120.61 = 3,083.64/x
  3. Step 3: Cross multiply
    3,715.14x = 5,120.61 × 3,083.64
  4. Step 4: Simplify right side
    3,715.14x = 15,790,117.82
  5. Step 5: Solve for x
    x = 15,790,117.82/3,715.14
  6. Step 6: Final answer
    x = 4,250.21

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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.