Home / 5,109.26-7,051.41-2,871.23

Finding the Fourth Proportional to 5,109.26, 7,051.41 and 2,871.23

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Solution

The fourth proportional to 5,109.26, 7,051.41 and 2,871.23 is: 3,962.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.26 : 7,051.41 = 2,871.23 : x
  2. Step 2: Convert to fraction form
    5,109.26/7,051.41 = 2,871.23/x
  3. Step 3: Cross multiply
    5,109.26x = 7,051.41 × 2,871.23
  4. Step 4: Simplify right side
    5,109.26x = 20,246,205.58
  5. Step 5: Solve for x
    x = 20,246,205.58/5,109.26
  6. Step 6: Final answer
    x = 3,962.65

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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.