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Finding the Fourth Proportional to 2,818.37, 4,226.54 and 969

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Solution

The fourth proportional to 2,818.37, 4,226.54 and 969 is: 1,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.37 : 4,226.54 = 969 : x
  2. Step 2: Convert to fraction form
    2,818.37/4,226.54 = 969/x
  3. Step 3: Cross multiply
    2,818.37x = 4,226.54 × 969
  4. Step 4: Simplify right side
    2,818.37x = 4,095,512.42
  5. Step 5: Solve for x
    x = 4,095,512.42/2,818.37
  6. Step 6: Final answer
    x = 1,453.15

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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.