Home / 5,209.14-7,188.84-3,218.16

Finding the Fourth Proportional to 5,209.14, 7,188.84 and 3,218.16

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Solution

The fourth proportional to 5,209.14, 7,188.84 and 3,218.16 is: 4,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.14 : 7,188.84 = 3,218.16 : x
  2. Step 2: Convert to fraction form
    5,209.14/7,188.84 = 3,218.16/x
  3. Step 3: Cross multiply
    5,209.14x = 7,188.84 × 3,218.16
  4. Step 4: Simplify right side
    5,209.14x = 23,134,837.33
  5. Step 5: Solve for x
    x = 23,134,837.33/5,209.14
  6. Step 6: Final answer
    x = 4,441.20

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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.