Home / 6,912.02-10,367.97-1,981.65

Finding the Fourth Proportional to 6,912.02, 10,367.97 and 1,981.65

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Solution

The fourth proportional to 6,912.02, 10,367.97 and 1,981.65 is: 2,972.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.02 : 10,367.97 = 1,981.65 : x
  2. Step 2: Convert to fraction form
    6,912.02/10,367.97 = 1,981.65/x
  3. Step 3: Cross multiply
    6,912.02x = 10,367.97 × 1,981.65
  4. Step 4: Simplify right side
    6,912.02x = 20,545,687.75
  5. Step 5: Solve for x
    x = 20,545,687.75/6,912.02
  6. Step 6: Final answer
    x = 2,972.46

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Double scale
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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.