Home / 7,175.75-10,764.24-1,981.62

Finding the Fourth Proportional to 7,175.75, 10,764.24 and 1,981.62

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Solution

The fourth proportional to 7,175.75, 10,764.24 and 1,981.62 is: 2,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,175.75 : 10,764.24 = 1,981.62 : x
  2. Step 2: Convert to fraction form
    7,175.75/10,764.24 = 1,981.62/x
  3. Step 3: Cross multiply
    7,175.75x = 10,764.24 × 1,981.62
  4. Step 4: Simplify right side
    7,175.75x = 21,330,625.84
  5. Step 5: Solve for x
    x = 21,330,625.84/7,175.75
  6. Step 6: Final answer
    x = 2,972.60

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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.