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Finding the Fourth Proportional to 950.46, 1,316.99 and 938.58

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Solution

The fourth proportional to 950.46, 1,316.99 and 938.58 is: 1,300.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.46 : 1,316.99 = 938.58 : x
  2. Step 2: Convert to fraction form
    950.46/1,316.99 = 938.58/x
  3. Step 3: Cross multiply
    950.46x = 1,316.99 × 938.58
  4. Step 4: Simplify right side
    950.46x = 1,236,095.78
  5. Step 5: Solve for x
    x = 1,236,095.78/950.46
  6. Step 6: Final answer
    x = 1,300.52

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.