Home / 3,603.21-4,972.43-1,947.21

Finding the Fourth Proportional to 3,603.21, 4,972.43 and 1,947.21

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Solution

The fourth proportional to 3,603.21, 4,972.43 and 1,947.21 is: 2,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.21 : 4,972.43 = 1,947.21 : x
  2. Step 2: Convert to fraction form
    3,603.21/4,972.43 = 1,947.21/x
  3. Step 3: Cross multiply
    3,603.21x = 4,972.43 × 1,947.21
  4. Step 4: Simplify right side
    3,603.21x = 9,682,365.42
  5. Step 5: Solve for x
    x = 9,682,365.42/3,603.21
  6. Step 6: Final answer
    x = 2,687.15

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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.