Home / 5,795.21-7,997.40-3,142.60

Finding the Fourth Proportional to 5,795.21, 7,997.40 and 3,142.60

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Solution

The fourth proportional to 5,795.21, 7,997.40 and 3,142.60 is: 4,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,795.21 : 7,997.40 = 3,142.60 : x
  2. Step 2: Convert to fraction form
    5,795.21/7,997.40 = 3,142.60/x
  3. Step 3: Cross multiply
    5,795.21x = 7,997.40 × 3,142.60
  4. Step 4: Simplify right side
    5,795.21x = 25,132,609.25
  5. Step 5: Solve for x
    x = 25,132,609.25/5,795.21
  6. Step 6: Final answer
    x = 4,336.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.