Home / 5,198.81-7,174.85-2,841.30

Finding the Fourth Proportional to 5,198.81, 7,174.85 and 2,841.30

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Solution

The fourth proportional to 5,198.81, 7,174.85 and 2,841.30 is: 3,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.81 : 7,174.85 = 2,841.30 : x
  2. Step 2: Convert to fraction form
    5,198.81/7,174.85 = 2,841.30/x
  3. Step 3: Cross multiply
    5,198.81x = 7,174.85 × 2,841.30
  4. Step 4: Simplify right side
    5,198.81x = 20,385,887.10
  5. Step 5: Solve for x
    x = 20,385,887.10/5,198.81
  6. Step 6: Final answer
    x = 3,921.26

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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.