Home / 5,180.22-7,771.62-1,670.55

Finding the Fourth Proportional to 5,180.22, 7,771.62 and 1,670.55

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Solution

The fourth proportional to 5,180.22, 7,771.62 and 1,670.55 is: 2,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.22 : 7,771.62 = 1,670.55 : x
  2. Step 2: Convert to fraction form
    5,180.22/7,771.62 = 1,670.55/x
  3. Step 3: Cross multiply
    5,180.22x = 7,771.62 × 1,670.55
  4. Step 4: Simplify right side
    5,180.22x = 12,982,879.79
  5. Step 5: Solve for x
    x = 12,982,879.79/5,180.22
  6. Step 6: Final answer
    x = 2,506.24

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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.