Home / 2,842.28-4,257.78-2,223.09

Finding the Fourth Proportional to 2,842.28, 4,257.78 and 2,223.09

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Solution

The fourth proportional to 2,842.28, 4,257.78 and 2,223.09 is: 3,330.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.28 : 4,257.78 = 2,223.09 : x
  2. Step 2: Convert to fraction form
    2,842.28/4,257.78 = 2,223.09/x
  3. Step 3: Cross multiply
    2,842.28x = 4,257.78 × 2,223.09
  4. Step 4: Simplify right side
    2,842.28x = 9,465,428.14
  5. Step 5: Solve for x
    x = 9,465,428.14/2,842.28
  6. Step 6: Final answer
    x = 3,330.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.