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Finding the Fourth Proportional to 2,650.68, 3,659.88 and 1,768.32

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Solution

The fourth proportional to 2,650.68, 3,659.88 and 1,768.32 is: 2,441.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.68 : 3,659.88 = 1,768.32 : x
  2. Step 2: Convert to fraction form
    2,650.68/3,659.88 = 1,768.32/x
  3. Step 3: Cross multiply
    2,650.68x = 3,659.88 × 1,768.32
  4. Step 4: Simplify right side
    2,650.68x = 6,471,839.00
  5. Step 5: Solve for x
    x = 6,471,839.00/2,650.68
  6. Step 6: Final answer
    x = 2,441.58

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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.