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Finding the Fourth Proportional to 3,603.68, 5,404.44 and 1,412

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Solution

The fourth proportional to 3,603.68, 5,404.44 and 1,412 is: 2,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.68 : 5,404.44 = 1,412 : x
  2. Step 2: Convert to fraction form
    3,603.68/5,404.44 = 1,412/x
  3. Step 3: Cross multiply
    3,603.68x = 5,404.44 × 1,412
  4. Step 4: Simplify right side
    3,603.68x = 7,631,069.28
  5. Step 5: Solve for x
    x = 7,631,069.28/3,603.68
  6. Step 6: Final answer
    x = 2,117.58

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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.