Home / 4,122.60-6,181.16-1,348.30

Finding the Fourth Proportional to 4,122.60, 6,181.16 and 1,348.30

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Solution

The fourth proportional to 4,122.60, 6,181.16 and 1,348.30 is: 2,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.60 : 6,181.16 = 1,348.30 : x
  2. Step 2: Convert to fraction form
    4,122.60/6,181.16 = 1,348.30/x
  3. Step 3: Cross multiply
    4,122.60x = 6,181.16 × 1,348.30
  4. Step 4: Simplify right side
    4,122.60x = 8,334,031.83
  5. Step 5: Solve for x
    x = 8,334,031.83/4,122.60
  6. Step 6: Final answer
    x = 2,021.55

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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.