Home / 4,812.97-6,645.17-3,115.58

Finding the Fourth Proportional to 4,812.97, 6,645.17 and 3,115.58

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Solution

The fourth proportional to 4,812.97, 6,645.17 and 3,115.58 is: 4,301.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.97 : 6,645.17 = 3,115.58 : x
  2. Step 2: Convert to fraction form
    4,812.97/6,645.17 = 3,115.58/x
  3. Step 3: Cross multiply
    4,812.97x = 6,645.17 × 3,115.58
  4. Step 4: Simplify right side
    4,812.97x = 20,703,558.75
  5. Step 5: Solve for x
    x = 20,703,558.75/4,812.97
  6. Step 6: Final answer
    x = 4,301.62

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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.