Home / 5,229.22-7,216.32-2,871.51

Finding the Fourth Proportional to 5,229.22, 7,216.32 and 2,871.51

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Solution

The fourth proportional to 5,229.22, 7,216.32 and 2,871.51 is: 3,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.22 : 7,216.32 = 2,871.51 : x
  2. Step 2: Convert to fraction form
    5,229.22/7,216.32 = 2,871.51/x
  3. Step 3: Cross multiply
    5,229.22x = 7,216.32 × 2,871.51
  4. Step 4: Simplify right side
    5,229.22x = 20,721,735.04
  5. Step 5: Solve for x
    x = 20,721,735.04/5,229.22
  6. Step 6: Final answer
    x = 3,962.68

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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.