Home / 2,555.39-3,831.27-1,093.75

Finding the Fourth Proportional to 2,555.39, 3,831.27 and 1,093.75

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Solution

The fourth proportional to 2,555.39, 3,831.27 and 1,093.75 is: 1,639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.39 : 3,831.27 = 1,093.75 : x
  2. Step 2: Convert to fraction form
    2,555.39/3,831.27 = 1,093.75/x
  3. Step 3: Cross multiply
    2,555.39x = 3,831.27 × 1,093.75
  4. Step 4: Simplify right side
    2,555.39x = 4,190,437.88
  5. Step 5: Solve for x
    x = 4,190,437.88/2,555.39
  6. Step 6: Final answer
    x = 1,639.84

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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.