Home / 5,282.12-7,289.42-2,892.12

Finding the Fourth Proportional to 5,282.12, 7,289.42 and 2,892.12

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Solution

The fourth proportional to 5,282.12, 7,289.42 and 2,892.12 is: 3,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,282.12 : 7,289.42 = 2,892.12 : x
  2. Step 2: Convert to fraction form
    5,282.12/7,289.42 = 2,892.12/x
  3. Step 3: Cross multiply
    5,282.12x = 7,289.42 × 2,892.12
  4. Step 4: Simplify right side
    5,282.12x = 21,081,862.91
  5. Step 5: Solve for x
    x = 21,081,862.91/5,282.12
  6. Step 6: Final answer
    x = 3,991.18

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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.