Home / 7,145.20-10,695.93-3,850.12

Finding the Fourth Proportional to 7,145.20, 10,695.93 and 3,850.12

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Solution

The fourth proportional to 7,145.20, 10,695.93 and 3,850.12 is: 5,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.20 : 10,695.93 = 3,850.12 : x
  2. Step 2: Convert to fraction form
    7,145.20/10,695.93 = 3,850.12/x
  3. Step 3: Cross multiply
    7,145.20x = 10,695.93 × 3,850.12
  4. Step 4: Simplify right side
    7,145.20x = 41,180,614.01
  5. Step 5: Solve for x
    x = 41,180,614.01/7,145.20
  6. Step 6: Final answer
    x = 5,763.40

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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.