Home / 2,744.12-3,785.62-1,681.56

Finding the Fourth Proportional to 2,744.12, 3,785.62 and 1,681.56

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Solution

The fourth proportional to 2,744.12, 3,785.62 and 1,681.56 is: 2,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,744.12 : 3,785.62 = 1,681.56 : x
  2. Step 2: Convert to fraction form
    2,744.12/3,785.62 = 1,681.56/x
  3. Step 3: Cross multiply
    2,744.12x = 3,785.62 × 1,681.56
  4. Step 4: Simplify right side
    2,744.12x = 6,365,747.17
  5. Step 5: Solve for x
    x = 6,365,747.17/2,744.12
  6. Step 6: Final answer
    x = 2,319.78

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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.