Home / 5,181.20-7,773.60-2,261.60

Finding the Fourth Proportional to 5,181.20, 7,773.60 and 2,261.60

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Solution

The fourth proportional to 5,181.20, 7,773.60 and 2,261.60 is: 3,393.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.20 : 7,773.60 = 2,261.60 : x
  2. Step 2: Convert to fraction form
    5,181.20/7,773.60 = 2,261.60/x
  3. Step 3: Cross multiply
    5,181.20x = 7,773.60 × 2,261.60
  4. Step 4: Simplify right side
    5,181.20x = 17,580,773.76
  5. Step 5: Solve for x
    x = 17,580,773.76/5,181.20
  6. Step 6: Final answer
    x = 3,393.19

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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.