Home / 7,165.68-10,742.37-2,720.85

Finding the Fourth Proportional to 7,165.68, 10,742.37 and 2,720.85

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Solution

The fourth proportional to 7,165.68, 10,742.37 and 2,720.85 is: 4,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.68 : 10,742.37 = 2,720.85 : x
  2. Step 2: Convert to fraction form
    7,165.68/10,742.37 = 2,720.85/x
  3. Step 3: Cross multiply
    7,165.68x = 10,742.37 × 2,720.85
  4. Step 4: Simplify right side
    7,165.68x = 29,228,377.41
  5. Step 5: Solve for x
    x = 29,228,377.41/7,165.68
  6. Step 6: Final answer
    x = 4,078.94

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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.