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Finding the Fourth Proportional to 2,662.03, 3,993.06 and 930.66

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Solution

The fourth proportional to 2,662.03, 3,993.06 and 930.66 is: 1,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.03 : 3,993.06 = 930.66 : x
  2. Step 2: Convert to fraction form
    2,662.03/3,993.06 = 930.66/x
  3. Step 3: Cross multiply
    2,662.03x = 3,993.06 × 930.66
  4. Step 4: Simplify right side
    2,662.03x = 3,716,169.74
  5. Step 5: Solve for x
    x = 3,716,169.74/2,662.03
  6. Step 6: Final answer
    x = 1,395.99

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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.