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Finding the Fourth Proportional to 3,594.56, 5,392.80 and 1,286.72

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Solution

The fourth proportional to 3,594.56, 5,392.80 and 1,286.72 is: 1,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,594.56 : 5,392.80 = 1,286.72 : x
  2. Step 2: Convert to fraction form
    3,594.56/5,392.80 = 1,286.72/x
  3. Step 3: Cross multiply
    3,594.56x = 5,392.80 × 1,286.72
  4. Step 4: Simplify right side
    3,594.56x = 6,939,023.62
  5. Step 5: Solve for x
    x = 6,939,023.62/3,594.56
  6. Step 6: Final answer
    x = 1,930.42

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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.