Home / 7,176.09-10,764.14-1,981.97

Finding the Fourth Proportional to 7,176.09, 10,764.14 and 1,981.97

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Solution

The fourth proportional to 7,176.09, 10,764.14 and 1,981.97 is: 2,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176.09 : 10,764.14 = 1,981.97 : x
  2. Step 2: Convert to fraction form
    7,176.09/10,764.14 = 1,981.97/x
  3. Step 3: Cross multiply
    7,176.09x = 10,764.14 × 1,981.97
  4. Step 4: Simplify right side
    7,176.09x = 21,334,190.34
  5. Step 5: Solve for x
    x = 21,334,190.34/7,176.09
  6. Step 6: Final answer
    x = 2,972.95

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Similar ratio
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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.