Home / 5,120.33-7,066.09-2,882.25

Finding the Fourth Proportional to 5,120.33, 7,066.09 and 2,882.25

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Solution

The fourth proportional to 5,120.33, 7,066.09 and 2,882.25 is: 3,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.33 : 7,066.09 = 2,882.25 : x
  2. Step 2: Convert to fraction form
    5,120.33/7,066.09 = 2,882.25/x
  3. Step 3: Cross multiply
    5,120.33x = 7,066.09 × 2,882.25
  4. Step 4: Simplify right side
    5,120.33x = 20,366,237.90
  5. Step 5: Solve for x
    x = 20,366,237.90/5,120.33
  6. Step 6: Final answer
    x = 3,977.52

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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.