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Finding the Fourth Proportional to 2,728.13, 3,764.66 and 1,609.00

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Solution

The fourth proportional to 2,728.13, 3,764.66 and 1,609.00 is: 2,220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.13 : 3,764.66 = 1,609.00 : x
  2. Step 2: Convert to fraction form
    2,728.13/3,764.66 = 1,609.00/x
  3. Step 3: Cross multiply
    2,728.13x = 3,764.66 × 1,609.00
  4. Step 4: Simplify right side
    2,728.13x = 6,057,320.48
  5. Step 5: Solve for x
    x = 6,057,320.48/2,728.13
  6. Step 6: Final answer
    x = 2,220.32

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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.