Home / 5,221.36-7,831.98-1,761.04

Finding the Fourth Proportional to 5,221.36, 7,831.98 and 1,761.04

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Solution

The fourth proportional to 5,221.36, 7,831.98 and 1,761.04 is: 2,641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.36 : 7,831.98 = 1,761.04 : x
  2. Step 2: Convert to fraction form
    5,221.36/7,831.98 = 1,761.04/x
  3. Step 3: Cross multiply
    5,221.36x = 7,831.98 × 1,761.04
  4. Step 4: Simplify right side
    5,221.36x = 13,792,430.06
  5. Step 5: Solve for x
    x = 13,792,430.06/5,221.36
  6. Step 6: Final answer
    x = 2,641.54

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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.