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Finding the Fourth Proportional to 2,818.42, 4,226.70 and 969.49

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Solution

The fourth proportional to 2,818.42, 4,226.70 and 969.49 is: 1,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.42 : 4,226.70 = 969.49 : x
  2. Step 2: Convert to fraction form
    2,818.42/4,226.70 = 969.49/x
  3. Step 3: Cross multiply
    2,818.42x = 4,226.70 × 969.49
  4. Step 4: Simplify right side
    2,818.42x = 4,097,743.38
  5. Step 5: Solve for x
    x = 4,097,743.38/2,818.42
  6. Step 6: Final answer
    x = 1,453.92

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1.5x scale

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.