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Finding the Fourth Proportional to 3,785.56, 5,678.88 and 1,446.44

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Solution

The fourth proportional to 3,785.56, 5,678.88 and 1,446.44 is: 2,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.56 : 5,678.88 = 1,446.44 : x
  2. Step 2: Convert to fraction form
    3,785.56/5,678.88 = 1,446.44/x
  3. Step 3: Cross multiply
    3,785.56x = 5,678.88 × 1,446.44
  4. Step 4: Simplify right side
    3,785.56x = 8,214,159.19
  5. Step 5: Solve for x
    x = 8,214,159.19/3,785.56
  6. Step 6: Final answer
    x = 2,169.87

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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.