Home / 5,220.45-7,831.07-1,522.71

Finding the Fourth Proportional to 5,220.45, 7,831.07 and 1,522.71

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Solution

The fourth proportional to 5,220.45, 7,831.07 and 1,522.71 is: 2,284.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.45 : 7,831.07 = 1,522.71 : x
  2. Step 2: Convert to fraction form
    5,220.45/7,831.07 = 1,522.71/x
  3. Step 3: Cross multiply
    5,220.45x = 7,831.07 × 1,522.71
  4. Step 4: Simplify right side
    5,220.45x = 11,924,440.99
  5. Step 5: Solve for x
    x = 11,924,440.99/5,220.45
  6. Step 6: Final answer
    x = 2,284.18

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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.