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Finding the Fourth Proportional to 2,515.81, 3,773.13 and 850.18

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Solution

The fourth proportional to 2,515.81, 3,773.13 and 850.18 is: 1,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.81 : 3,773.13 = 850.18 : x
  2. Step 2: Convert to fraction form
    2,515.81/3,773.13 = 850.18/x
  3. Step 3: Cross multiply
    2,515.81x = 3,773.13 × 850.18
  4. Step 4: Simplify right side
    2,515.81x = 3,207,839.66
  5. Step 5: Solve for x
    x = 3,207,839.66/2,515.81
  6. Step 6: Final answer
    x = 1,275.07

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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.