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Finding the Fourth Proportional to 3,603.84, 5,403.57 and 1,409.94

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Solution

The fourth proportional to 3,603.84, 5,403.57 and 1,409.94 is: 2,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.84 : 5,403.57 = 1,409.94 : x
  2. Step 2: Convert to fraction form
    3,603.84/5,403.57 = 1,409.94/x
  3. Step 3: Cross multiply
    3,603.84x = 5,403.57 × 1,409.94
  4. Step 4: Simplify right side
    3,603.84x = 7,618,709.49
  5. Step 5: Solve for x
    x = 7,618,709.49/3,603.84
  6. Step 6: Final answer
    x = 2,114.05

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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.