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Finding the Fourth Proportional to 5,604.60, 8,394.16 and 2,685

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Solution

The fourth proportional to 5,604.60, 8,394.16 and 2,685 is: 4,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,604.60 : 8,394.16 = 2,685 : x
  2. Step 2: Convert to fraction form
    5,604.60/8,394.16 = 2,685/x
  3. Step 3: Cross multiply
    5,604.60x = 8,394.16 × 2,685
  4. Step 4: Simplify right side
    5,604.60x = 22,538,319.60
  5. Step 5: Solve for x
    x = 22,538,319.60/5,604.60
  6. Step 6: Final answer
    x = 4,021.40

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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.