Home / 5,279.80-7,286.30-2,922.16

Finding the Fourth Proportional to 5,279.80, 7,286.30 and 2,922.16

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Solution

The fourth proportional to 5,279.80, 7,286.30 and 2,922.16 is: 4,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.80 : 7,286.30 = 2,922.16 : x
  2. Step 2: Convert to fraction form
    5,279.80/7,286.30 = 2,922.16/x
  3. Step 3: Cross multiply
    5,279.80x = 7,286.30 × 2,922.16
  4. Step 4: Simplify right side
    5,279.80x = 21,291,734.41
  5. Step 5: Solve for x
    x = 21,291,734.41/5,279.80
  6. Step 6: Final answer
    x = 4,032.68

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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.