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Finding the Fourth Proportional to 2,707.97, 3,736.62 and 1,645.97

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Solution

The fourth proportional to 2,707.97, 3,736.62 and 1,645.97 is: 2,271.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.97 : 3,736.62 = 1,645.97 : x
  2. Step 2: Convert to fraction form
    2,707.97/3,736.62 = 1,645.97/x
  3. Step 3: Cross multiply
    2,707.97x = 3,736.62 × 1,645.97
  4. Step 4: Simplify right side
    2,707.97x = 6,150,345.74
  5. Step 5: Solve for x
    x = 6,150,345.74/2,707.97
  6. Step 6: Final answer
    x = 2,271.21

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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.