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Finding the Fourth Proportional to 3,603.62, 4,972.82 and 2,009.99

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Solution

The fourth proportional to 3,603.62, 4,972.82 and 2,009.99 is: 2,773.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.62 : 4,972.82 = 2,009.99 : x
  2. Step 2: Convert to fraction form
    3,603.62/4,972.82 = 2,009.99/x
  3. Step 3: Cross multiply
    3,603.62x = 4,972.82 × 2,009.99
  4. Step 4: Simplify right side
    3,603.62x = 9,995,283.56
  5. Step 5: Solve for x
    x = 9,995,283.56/3,603.62
  6. Step 6: Final answer
    x = 2,773.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.