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Finding the Fourth Proportional to 2,693.13, 3,716.72 and 1,645.39

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Solution

The fourth proportional to 2,693.13, 3,716.72 and 1,645.39 is: 2,270.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.13 : 3,716.72 = 1,645.39 : x
  2. Step 2: Convert to fraction form
    2,693.13/3,716.72 = 1,645.39/x
  3. Step 3: Cross multiply
    2,693.13x = 3,716.72 × 1,645.39
  4. Step 4: Simplify right side
    2,693.13x = 6,115,453.92
  5. Step 5: Solve for x
    x = 6,115,453.92/2,693.13
  6. Step 6: Final answer
    x = 2,270.76

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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.