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Finding the Fourth Proportional to 3,301.65, 4,960.89 and 3,112.65

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Solution

The fourth proportional to 3,301.65, 4,960.89 and 3,112.65 is: 4,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,301.65 : 4,960.89 = 3,112.65 : x
  2. Step 2: Convert to fraction form
    3,301.65/4,960.89 = 3,112.65/x
  3. Step 3: Cross multiply
    3,301.65x = 4,960.89 × 3,112.65
  4. Step 4: Simplify right side
    3,301.65x = 15,441,514.26
  5. Step 5: Solve for x
    x = 15,441,514.26/3,301.65
  6. Step 6: Final answer
    x = 4,676.91

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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.