Home / 5,121.26-7,066.32-2,883.23

Finding the Fourth Proportional to 5,121.26, 7,066.32 and 2,883.23

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Solution

The fourth proportional to 5,121.26, 7,066.32 and 2,883.23 is: 3,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.26 : 7,066.32 = 2,883.23 : x
  2. Step 2: Convert to fraction form
    5,121.26/7,066.32 = 2,883.23/x
  3. Step 3: Cross multiply
    5,121.26x = 7,066.32 × 2,883.23
  4. Step 4: Simplify right side
    5,121.26x = 20,373,790.48
  5. Step 5: Solve for x
    x = 20,373,790.48/5,121.26
  6. Step 6: Final answer
    x = 3,978.28

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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.