Home / 6,919.92-10,380.36-2,175.42

Finding the Fourth Proportional to 6,919.92, 10,380.36 and 2,175.42

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Solution

The fourth proportional to 6,919.92, 10,380.36 and 2,175.42 is: 3,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.92 : 10,380.36 = 2,175.42 : x
  2. Step 2: Convert to fraction form
    6,919.92/10,380.36 = 2,175.42/x
  3. Step 3: Cross multiply
    6,919.92x = 10,380.36 × 2,175.42
  4. Step 4: Simplify right side
    6,919.92x = 22,581,642.75
  5. Step 5: Solve for x
    x = 22,581,642.75/6,919.92
  6. Step 6: Final answer
    x = 3,263.28

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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.