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Finding the Fourth Proportional to 2,257.99, 3,386.99 and 796.80

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Solution

The fourth proportional to 2,257.99, 3,386.99 and 796.80 is: 1,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.99 : 3,386.99 = 796.80 : x
  2. Step 2: Convert to fraction form
    2,257.99/3,386.99 = 796.80/x
  3. Step 3: Cross multiply
    2,257.99x = 3,386.99 × 796.80
  4. Step 4: Simplify right side
    2,257.99x = 2,698,753.63
  5. Step 5: Solve for x
    x = 2,698,753.63/2,257.99
  6. Step 6: Final answer
    x = 1,195.20

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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.