Home / 7,168.25-10,749.61-2,785.13

Finding the Fourth Proportional to 7,168.25, 10,749.61 and 2,785.13

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Solution

The fourth proportional to 7,168.25, 10,749.61 and 2,785.13 is: 4,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.25 : 10,749.61 = 2,785.13 : x
  2. Step 2: Convert to fraction form
    7,168.25/10,749.61 = 2,785.13/x
  3. Step 3: Cross multiply
    7,168.25x = 10,749.61 × 2,785.13
  4. Step 4: Simplify right side
    7,168.25x = 29,939,061.30
  5. Step 5: Solve for x
    x = 29,939,061.30/7,168.25
  6. Step 6: Final answer
    x = 4,176.62

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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.