Home / 6,151.02-8,487.12-3,912.09

Finding the Fourth Proportional to 6,151.02, 8,487.12 and 3,912.09

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Solution

The fourth proportional to 6,151.02, 8,487.12 and 3,912.09 is: 5,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,151.02 : 8,487.12 = 3,912.09 : x
  2. Step 2: Convert to fraction form
    6,151.02/8,487.12 = 3,912.09/x
  3. Step 3: Cross multiply
    6,151.02x = 8,487.12 × 3,912.09
  4. Step 4: Simplify right side
    6,151.02x = 33,202,377.28
  5. Step 5: Solve for x
    x = 33,202,377.28/6,151.02
  6. Step 6: Final answer
    x = 5,397.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.