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Finding the Fourth Proportional to 1,948.23, 2,919.60 and 850.29

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Solution

The fourth proportional to 1,948.23, 2,919.60 and 850.29 is: 1,274.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.23 : 2,919.60 = 850.29 : x
  2. Step 2: Convert to fraction form
    1,948.23/2,919.60 = 850.29/x
  3. Step 3: Cross multiply
    1,948.23x = 2,919.60 × 850.29
  4. Step 4: Simplify right side
    1,948.23x = 2,482,506.68
  5. Step 5: Solve for x
    x = 2,482,506.68/1,948.23
  6. Step 6: Final answer
    x = 1,274.24

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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.