Home / 3,887.37-5,831.13-1,422.19

Finding the Fourth Proportional to 3,887.37, 5,831.13 and 1,422.19

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Solution

The fourth proportional to 3,887.37, 5,831.13 and 1,422.19 is: 2,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.37 : 5,831.13 = 1,422.19 : x
  2. Step 2: Convert to fraction form
    3,887.37/5,831.13 = 1,422.19/x
  3. Step 3: Cross multiply
    3,887.37x = 5,831.13 × 1,422.19
  4. Step 4: Simplify right side
    3,887.37x = 8,292,974.77
  5. Step 5: Solve for x
    x = 8,292,974.77/3,887.37
  6. Step 6: Final answer
    x = 2,133.31

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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.