Home / 3,740.00-5,160.90-2,168.20

Finding the Fourth Proportional to 3,740.00, 5,160.90 and 2,168.20

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Solution

The fourth proportional to 3,740.00, 5,160.90 and 2,168.20 is: 2,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.00 : 5,160.90 = 2,168.20 : x
  2. Step 2: Convert to fraction form
    3,740.00/5,160.90 = 2,168.20/x
  3. Step 3: Cross multiply
    3,740.00x = 5,160.90 × 2,168.20
  4. Step 4: Simplify right side
    3,740.00x = 11,189,850.48
  5. Step 5: Solve for x
    x = 11,189,850.48/3,740.00
  6. Step 6: Final answer
    x = 2,991.94

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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.