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Finding the Fourth Proportional to 2,519.25, 3,778.86 and 958.88

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Solution

The fourth proportional to 2,519.25, 3,778.86 and 958.88 is: 1,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.25 : 3,778.86 = 958.88 : x
  2. Step 2: Convert to fraction form
    2,519.25/3,778.86 = 958.88/x
  3. Step 3: Cross multiply
    2,519.25x = 3,778.86 × 958.88
  4. Step 4: Simplify right side
    2,519.25x = 3,623,477.93
  5. Step 5: Solve for x
    x = 3,623,477.93/2,519.25
  6. Step 6: Final answer
    x = 1,438.32

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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.