Home / 1,831.14-2,745.96-660.90

Finding the Fourth Proportional to 1,831.14, 2,745.96 and 660.90

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Solution

The fourth proportional to 1,831.14, 2,745.96 and 660.90 is: 991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.14 : 2,745.96 = 660.90 : x
  2. Step 2: Convert to fraction form
    1,831.14/2,745.96 = 660.90/x
  3. Step 3: Cross multiply
    1,831.14x = 2,745.96 × 660.90
  4. Step 4: Simplify right side
    1,831.14x = 1,814,804.96
  5. Step 5: Solve for x
    x = 1,814,804.96/1,831.14
  6. Step 6: Final answer
    x = 991.08

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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.