Home / 5,212.10-7,824.55-2,616.90

Finding the Fourth Proportional to 5,212.10, 7,824.55 and 2,616.90

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Solution

The fourth proportional to 5,212.10, 7,824.55 and 2,616.90 is: 3,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.10 : 7,824.55 = 2,616.90 : x
  2. Step 2: Convert to fraction form
    5,212.10/7,824.55 = 2,616.90/x
  3. Step 3: Cross multiply
    5,212.10x = 7,824.55 × 2,616.90
  4. Step 4: Simplify right side
    5,212.10x = 20,476,064.90
  5. Step 5: Solve for x
    x = 20,476,064.90/5,212.10
  6. Step 6: Final answer
    x = 3,928.56

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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.