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Finding the Fourth Proportional to 950.66, 1,418.62 and 841.31

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Solution

The fourth proportional to 950.66, 1,418.62 and 841.31 is: 1,255.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.66 : 1,418.62 = 841.31 : x
  2. Step 2: Convert to fraction form
    950.66/1,418.62 = 841.31/x
  3. Step 3: Cross multiply
    950.66x = 1,418.62 × 841.31
  4. Step 4: Simplify right side
    950.66x = 1,193,499.19
  5. Step 5: Solve for x
    x = 1,193,499.19/950.66
  6. Step 6: Final answer
    x = 1,255.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.