Home / 5,171.91-7,137.01-2,814.04

Finding the Fourth Proportional to 5,171.91, 7,137.01 and 2,814.04

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Solution

The fourth proportional to 5,171.91, 7,137.01 and 2,814.04 is: 3,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.91 : 7,137.01 = 2,814.04 : x
  2. Step 2: Convert to fraction form
    5,171.91/7,137.01 = 2,814.04/x
  3. Step 3: Cross multiply
    5,171.91x = 7,137.01 × 2,814.04
  4. Step 4: Simplify right side
    5,171.91x = 20,083,831.62
  5. Step 5: Solve for x
    x = 20,083,831.62/5,171.91
  6. Step 6: Final answer
    x = 3,883.25

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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.