Home / 3,663.10-5,055.08-2,171.75

Finding the Fourth Proportional to 3,663.10, 5,055.08 and 2,171.75

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Solution

The fourth proportional to 3,663.10, 5,055.08 and 2,171.75 is: 2,997.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.10 : 5,055.08 = 2,171.75 : x
  2. Step 2: Convert to fraction form
    3,663.10/5,055.08 = 2,171.75/x
  3. Step 3: Cross multiply
    3,663.10x = 5,055.08 × 2,171.75
  4. Step 4: Simplify right side
    3,663.10x = 10,978,359.13
  5. Step 5: Solve for x
    x = 10,978,359.13/3,663.10
  6. Step 6: Final answer
    x = 2,997.02

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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.