Home / 7,939.10-11,900.24-2,938.25

Finding the Fourth Proportional to 7,939.10, 11,900.24 and 2,938.25

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Solution

The fourth proportional to 7,939.10, 11,900.24 and 2,938.25 is: 4,404.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.10 : 11,900.24 = 2,938.25 : x
  2. Step 2: Convert to fraction form
    7,939.10/11,900.24 = 2,938.25/x
  3. Step 3: Cross multiply
    7,939.10x = 11,900.24 × 2,938.25
  4. Step 4: Simplify right side
    7,939.10x = 34,965,805.99
  5. Step 5: Solve for x
    x = 34,965,805.99/7,939.10
  6. Step 6: Final answer
    x = 4,404.26

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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.