Home / 5,134.88-7,700.68-2,211.32

Finding the Fourth Proportional to 5,134.88, 7,700.68 and 2,211.32

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Solution

The fourth proportional to 5,134.88, 7,700.68 and 2,211.32 is: 3,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.88 : 7,700.68 = 2,211.32 : x
  2. Step 2: Convert to fraction form
    5,134.88/7,700.68 = 2,211.32/x
  3. Step 3: Cross multiply
    5,134.88x = 7,700.68 × 2,211.32
  4. Step 4: Simplify right side
    5,134.88x = 17,028,667.70
  5. Step 5: Solve for x
    x = 17,028,667.70/5,134.88
  6. Step 6: Final answer
    x = 3,316.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.