Home / 6,072.78-9,108.99-1,912.80

Finding the Fourth Proportional to 6,072.78, 9,108.99 and 1,912.80

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Solution

The fourth proportional to 6,072.78, 9,108.99 and 1,912.80 is: 2,869.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,072.78 : 9,108.99 = 1,912.80 : x
  2. Step 2: Convert to fraction form
    6,072.78/9,108.99 = 1,912.80/x
  3. Step 3: Cross multiply
    6,072.78x = 9,108.99 × 1,912.80
  4. Step 4: Simplify right side
    6,072.78x = 17,423,676.07
  5. Step 5: Solve for x
    x = 17,423,676.07/6,072.78
  6. Step 6: Final answer
    x = 2,869.14

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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.