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Finding the Fourth Proportional to 3,604.34, 5,408.54 and 1,656.70

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Solution

The fourth proportional to 3,604.34, 5,408.54 and 1,656.70 is: 2,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.34 : 5,408.54 = 1,656.70 : x
  2. Step 2: Convert to fraction form
    3,604.34/5,408.54 = 1,656.70/x
  3. Step 3: Cross multiply
    3,604.34x = 5,408.54 × 1,656.70
  4. Step 4: Simplify right side
    3,604.34x = 8,960,328.22
  5. Step 5: Solve for x
    x = 8,960,328.22/3,604.34
  6. Step 6: Final answer
    x = 2,485.98

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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.