Home / 7,145.96-10,720.18-3,250.68

Finding the Fourth Proportional to 7,145.96, 10,720.18 and 3,250.68

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Solution

The fourth proportional to 7,145.96, 10,720.18 and 3,250.68 is: 4,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.96 : 10,720.18 = 3,250.68 : x
  2. Step 2: Convert to fraction form
    7,145.96/10,720.18 = 3,250.68/x
  3. Step 3: Cross multiply
    7,145.96x = 10,720.18 × 3,250.68
  4. Step 4: Simplify right side
    7,145.96x = 34,847,874.72
  5. Step 5: Solve for x
    x = 34,847,874.72/7,145.96
  6. Step 6: Final answer
    x = 4,876.58

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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.