Home / 1,831.32-2,747.52-1,185.48

Finding the Fourth Proportional to 1,831.32, 2,747.52 and 1,185.48

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Solution

The fourth proportional to 1,831.32, 2,747.52 and 1,185.48 is: 1,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.32 : 2,747.52 = 1,185.48 : x
  2. Step 2: Convert to fraction form
    1,831.32/2,747.52 = 1,185.48/x
  3. Step 3: Cross multiply
    1,831.32x = 2,747.52 × 1,185.48
  4. Step 4: Simplify right side
    1,831.32x = 3,257,130.01
  5. Step 5: Solve for x
    x = 3,257,130.01/1,831.32
  6. Step 6: Final answer
    x = 1,778.57

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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.