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Finding the Fourth Proportional to 2,509.25, 3,764.11 and 660.38

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Solution

The fourth proportional to 2,509.25, 3,764.11 and 660.38 is: 990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.25 : 3,764.11 = 660.38 : x
  2. Step 2: Convert to fraction form
    2,509.25/3,764.11 = 660.38/x
  3. Step 3: Cross multiply
    2,509.25x = 3,764.11 × 660.38
  4. Step 4: Simplify right side
    2,509.25x = 2,485,742.96
  5. Step 5: Solve for x
    x = 2,485,742.96/2,509.25
  6. Step 6: Final answer
    x = 990.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.