Home / 5,220.70-7,831.44-1,522.96

Finding the Fourth Proportional to 5,220.70, 7,831.44 and 1,522.96

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Solution

The fourth proportional to 5,220.70, 7,831.44 and 1,522.96 is: 2,284.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.70 : 7,831.44 = 1,522.96 : x
  2. Step 2: Convert to fraction form
    5,220.70/7,831.44 = 1,522.96/x
  3. Step 3: Cross multiply
    5,220.70x = 7,831.44 × 1,522.96
  4. Step 4: Simplify right side
    5,220.70x = 11,926,969.86
  5. Step 5: Solve for x
    x = 11,926,969.86/5,220.70
  6. Step 6: Final answer
    x = 2,284.55

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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.