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Finding the Fourth Proportional to 3,330.57, 4,996.13 and 958.65

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Solution

The fourth proportional to 3,330.57, 4,996.13 and 958.65 is: 1,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.57 : 4,996.13 = 958.65 : x
  2. Step 2: Convert to fraction form
    3,330.57/4,996.13 = 958.65/x
  3. Step 3: Cross multiply
    3,330.57x = 4,996.13 × 958.65
  4. Step 4: Simplify right side
    3,330.57x = 4,789,540.02
  5. Step 5: Solve for x
    x = 4,789,540.02/3,330.57
  6. Step 6: Final answer
    x = 1,438.05

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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.