Home / 7,319.68-10,976.20-3,157.72

Finding the Fourth Proportional to 7,319.68, 10,976.20 and 3,157.72

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Solution

The fourth proportional to 7,319.68, 10,976.20 and 3,157.72 is: 4,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.68 : 10,976.20 = 3,157.72 : x
  2. Step 2: Convert to fraction form
    7,319.68/10,976.20 = 3,157.72/x
  3. Step 3: Cross multiply
    7,319.68x = 10,976.20 × 3,157.72
  4. Step 4: Simplify right side
    7,319.68x = 34,659,766.26
  5. Step 5: Solve for x
    x = 34,659,766.26/7,319.68
  6. Step 6: Final answer
    x = 4,735.15

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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.