Home / 5,109.26-7,050.62-2,871.38

Finding the Fourth Proportional to 5,109.26, 7,050.62 and 2,871.38

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Solution

The fourth proportional to 5,109.26, 7,050.62 and 2,871.38 is: 3,962.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.26 : 7,050.62 = 2,871.38 : x
  2. Step 2: Convert to fraction form
    5,109.26/7,050.62 = 2,871.38/x
  3. Step 3: Cross multiply
    5,109.26x = 7,050.62 × 2,871.38
  4. Step 4: Simplify right side
    5,109.26x = 20,245,009.26
  5. Step 5: Solve for x
    x = 20,245,009.26/5,109.26
  6. Step 6: Final answer
    x = 3,962.42

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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.