Home / 5,197.88-7,173.09-2,840.18

Finding the Fourth Proportional to 5,197.88, 7,173.09 and 2,840.18

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Solution

The fourth proportional to 5,197.88, 7,173.09 and 2,840.18 is: 3,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.88 : 7,173.09 = 2,840.18 : x
  2. Step 2: Convert to fraction form
    5,197.88/7,173.09 = 2,840.18/x
  3. Step 3: Cross multiply
    5,197.88x = 7,173.09 × 2,840.18
  4. Step 4: Simplify right side
    5,197.88x = 20,372,830.89
  5. Step 5: Solve for x
    x = 20,372,830.89/5,197.88
  6. Step 6: Final answer
    x = 3,919.45

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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.