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Finding the Fourth Proportional to 3,603.96, 5,404.32 and 1,138.32

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Solution

The fourth proportional to 3,603.96, 5,404.32 and 1,138.32 is: 1,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.96 : 5,404.32 = 1,138.32 : x
  2. Step 2: Convert to fraction form
    3,603.96/5,404.32 = 1,138.32/x
  3. Step 3: Cross multiply
    3,603.96x = 5,404.32 × 1,138.32
  4. Step 4: Simplify right side
    3,603.96x = 6,151,845.54
  5. Step 5: Solve for x
    x = 6,151,845.54/3,603.96
  6. Step 6: Final answer
    x = 1,706.97

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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.