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Finding the Fourth Proportional to 3,546.07, 5,318.95 and 949

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Solution

The fourth proportional to 3,546.07, 5,318.95 and 949 is: 1,423.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546.07 : 5,318.95 = 949 : x
  2. Step 2: Convert to fraction form
    3,546.07/5,318.95 = 949/x
  3. Step 3: Cross multiply
    3,546.07x = 5,318.95 × 949
  4. Step 4: Simplify right side
    3,546.07x = 5,047,683.55
  5. Step 5: Solve for x
    x = 5,047,683.55/3,546.07
  6. Step 6: Final answer
    x = 1,423.46

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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.