Home / 3,887.09-5,831.44-1,254.79

Finding the Fourth Proportional to 3,887.09, 5,831.44 and 1,254.79

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Solution

The fourth proportional to 3,887.09, 5,831.44 and 1,254.79 is: 1,882.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.09 : 5,831.44 = 1,254.79 : x
  2. Step 2: Convert to fraction form
    3,887.09/5,831.44 = 1,254.79/x
  3. Step 3: Cross multiply
    3,887.09x = 5,831.44 × 1,254.79
  4. Step 4: Simplify right side
    3,887.09x = 7,317,214.88
  5. Step 5: Solve for x
    x = 7,317,214.88/3,887.09
  6. Step 6: Final answer
    x = 1,882.44

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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.