Home / 5,220.43-7,830.66-1,522.75

Finding the Fourth Proportional to 5,220.43, 7,830.66 and 1,522.75

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Solution

The fourth proportional to 5,220.43, 7,830.66 and 1,522.75 is: 2,284.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.43 : 7,830.66 = 1,522.75 : x
  2. Step 2: Convert to fraction form
    5,220.43/7,830.66 = 1,522.75/x
  3. Step 3: Cross multiply
    5,220.43x = 7,830.66 × 1,522.75
  4. Step 4: Simplify right side
    5,220.43x = 11,924,137.52
  5. Step 5: Solve for x
    x = 11,924,137.52/5,220.43
  6. Step 6: Final answer
    x = 2,284.13

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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.