Home / 2,831.97-4,250.40-1,101.81

Finding the Fourth Proportional to 2,831.97, 4,250.40 and 1,101.81

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Solution

The fourth proportional to 2,831.97, 4,250.40 and 1,101.81 is: 1,653.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.97 : 4,250.40 = 1,101.81 : x
  2. Step 2: Convert to fraction form
    2,831.97/4,250.40 = 1,101.81/x
  3. Step 3: Cross multiply
    2,831.97x = 4,250.40 × 1,101.81
  4. Step 4: Simplify right side
    2,831.97x = 4,683,133.22
  5. Step 5: Solve for x
    x = 4,683,133.22/2,831.97
  6. Step 6: Final answer
    x = 1,653.67

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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.