Home / 5,197.96-7,173.18-2,840.28

Finding the Fourth Proportional to 5,197.96, 7,173.18 and 2,840.28

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Solution

The fourth proportional to 5,197.96, 7,173.18 and 2,840.28 is: 3,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.96 : 7,173.18 = 2,840.28 : x
  2. Step 2: Convert to fraction form
    5,197.96/7,173.18 = 2,840.28/x
  3. Step 3: Cross multiply
    5,197.96x = 7,173.18 × 2,840.28
  4. Step 4: Simplify right side
    5,197.96x = 20,373,839.69
  5. Step 5: Solve for x
    x = 20,373,839.69/5,197.96
  6. Step 6: Final answer
    x = 3,919.58

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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.