Home / 5,282.26-7,289.45-2,892.20

Finding the Fourth Proportional to 5,282.26, 7,289.45 and 2,892.20

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Solution

The fourth proportional to 5,282.26, 7,289.45 and 2,892.20 is: 3,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.26 : 7,289.45 = 2,892.20 : x
  2. Step 2: Convert to fraction form
    5,282.26/7,289.45 = 2,892.20/x
  3. Step 3: Cross multiply
    5,282.26x = 7,289.45 × 2,892.20
  4. Step 4: Simplify right side
    5,282.26x = 21,082,561.90
  5. Step 5: Solve for x
    x = 21,082,561.90/5,282.26
  6. Step 6: Final answer
    x = 3,991.20

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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.