Home / 2,553.36-3,812.78-2,238.68

Finding the Fourth Proportional to 2,553.36, 3,812.78 and 2,238.68

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Solution

The fourth proportional to 2,553.36, 3,812.78 and 2,238.68 is: 3,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.36 : 3,812.78 = 2,238.68 : x
  2. Step 2: Convert to fraction form
    2,553.36/3,812.78 = 2,238.68/x
  3. Step 3: Cross multiply
    2,553.36x = 3,812.78 × 2,238.68
  4. Step 4: Simplify right side
    2,553.36x = 8,535,594.33
  5. Step 5: Solve for x
    x = 8,535,594.33/2,553.36
  6. Step 6: Final answer
    x = 3,342.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.