Home / 2,831.36-4,247.04-1,100.39

Finding the Fourth Proportional to 2,831.36, 4,247.04 and 1,100.39

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Solution

The fourth proportional to 2,831.36, 4,247.04 and 1,100.39 is: 1,650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.36 : 4,247.04 = 1,100.39 : x
  2. Step 2: Convert to fraction form
    2,831.36/4,247.04 = 1,100.39/x
  3. Step 3: Cross multiply
    2,831.36x = 4,247.04 × 1,100.39
  4. Step 4: Simplify right side
    2,831.36x = 4,673,400.35
  5. Step 5: Solve for x
    x = 4,673,400.35/2,831.36
  6. Step 6: Final answer
    x = 1,650.59

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Similar ratio
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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.