Home / 5,199.15-7,174.89-2,961.18

Finding the Fourth Proportional to 5,199.15, 7,174.89 and 2,961.18

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Solution

The fourth proportional to 5,199.15, 7,174.89 and 2,961.18 is: 4,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.15 : 7,174.89 = 2,961.18 : x
  2. Step 2: Convert to fraction form
    5,199.15/7,174.89 = 2,961.18/x
  3. Step 3: Cross multiply
    5,199.15x = 7,174.89 × 2,961.18
  4. Step 4: Simplify right side
    5,199.15x = 21,246,140.77
  5. Step 5: Solve for x
    x = 21,246,140.77/5,199.15
  6. Step 6: Final answer
    x = 4,086.46

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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.