Home / 5,222.77-7,831.72-1,935.79

Finding the Fourth Proportional to 5,222.77, 7,831.72 and 1,935.79

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Solution

The fourth proportional to 5,222.77, 7,831.72 and 1,935.79 is: 2,902.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.77 : 7,831.72 = 1,935.79 : x
  2. Step 2: Convert to fraction form
    5,222.77/7,831.72 = 1,935.79/x
  3. Step 3: Cross multiply
    5,222.77x = 7,831.72 × 1,935.79
  4. Step 4: Simplify right side
    5,222.77x = 15,160,565.26
  5. Step 5: Solve for x
    x = 15,160,565.26/5,222.77
  6. Step 6: Final answer
    x = 2,902.78

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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.