Home / 5,157.20-7,738.60-2,195.16

Finding the Fourth Proportional to 5,157.20, 7,738.60 and 2,195.16

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Solution

The fourth proportional to 5,157.20, 7,738.60 and 2,195.16 is: 3,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.20 : 7,738.60 = 2,195.16 : x
  2. Step 2: Convert to fraction form
    5,157.20/7,738.60 = 2,195.16/x
  3. Step 3: Cross multiply
    5,157.20x = 7,738.60 × 2,195.16
  4. Step 4: Simplify right side
    5,157.20x = 16,987,465.18
  5. Step 5: Solve for x
    x = 16,987,465.18/5,157.20
  6. Step 6: Final answer
    x = 3,293.93

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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.