Home / 5,199.57-7,174.40-2,961.39

Finding the Fourth Proportional to 5,199.57, 7,174.40 and 2,961.39

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Solution

The fourth proportional to 5,199.57, 7,174.40 and 2,961.39 is: 4,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.57 : 7,174.40 = 2,961.39 : x
  2. Step 2: Convert to fraction form
    5,199.57/7,174.40 = 2,961.39/x
  3. Step 3: Cross multiply
    5,199.57x = 7,174.40 × 2,961.39
  4. Step 4: Simplify right side
    5,199.57x = 21,246,196.42
  5. Step 5: Solve for x
    x = 21,246,196.42/5,199.57
  6. Step 6: Final answer
    x = 4,086.14

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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.