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Finding the Fourth Proportional to 949.37, 1,311.12 and 846.29

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Solution

The fourth proportional to 949.37, 1,311.12 and 846.29 is: 1,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.37 : 1,311.12 = 846.29 : x
  2. Step 2: Convert to fraction form
    949.37/1,311.12 = 846.29/x
  3. Step 3: Cross multiply
    949.37x = 1,311.12 × 846.29
  4. Step 4: Simplify right side
    949.37x = 1,109,591.02
  5. Step 5: Solve for x
    x = 1,109,591.02/949.37
  6. Step 6: Final answer
    x = 1,168.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.