Home / 2,553.38-3,831.17-1,238.13

Finding the Fourth Proportional to 2,553.38, 3,831.17 and 1,238.13

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Solution

The fourth proportional to 2,553.38, 3,831.17 and 1,238.13 is: 1,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.38 : 3,831.17 = 1,238.13 : x
  2. Step 2: Convert to fraction form
    2,553.38/3,831.17 = 1,238.13/x
  3. Step 3: Cross multiply
    2,553.38x = 3,831.17 × 1,238.13
  4. Step 4: Simplify right side
    2,553.38x = 4,743,486.51
  5. Step 5: Solve for x
    x = 4,743,486.51/2,553.38
  6. Step 6: Final answer
    x = 1,857.73

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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.