Home / 5,198.81-7,174.64-3,429.16

Finding the Fourth Proportional to 5,198.81, 7,174.64 and 3,429.16

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Solution

The fourth proportional to 5,198.81, 7,174.64 and 3,429.16 is: 4,732.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.81 : 7,174.64 = 3,429.16 : x
  2. Step 2: Convert to fraction form
    5,198.81/7,174.64 = 3,429.16/x
  3. Step 3: Cross multiply
    5,198.81x = 7,174.64 × 3,429.16
  4. Step 4: Simplify right side
    5,198.81x = 24,602,979.14
  5. Step 5: Solve for x
    x = 24,602,979.14/5,198.81
  6. Step 6: Final answer
    x = 4,732.43

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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.