Home / 3,603.15-5,378.67-3,165.75

Finding the Fourth Proportional to 3,603.15, 5,378.67 and 3,165.75

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Solution

The fourth proportional to 3,603.15, 5,378.67 and 3,165.75 is: 4,725.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.15 : 5,378.67 = 3,165.75 : x
  2. Step 2: Convert to fraction form
    3,603.15/5,378.67 = 3,165.75/x
  3. Step 3: Cross multiply
    3,603.15x = 5,378.67 × 3,165.75
  4. Step 4: Simplify right side
    3,603.15x = 17,027,524.55
  5. Step 5: Solve for x
    x = 17,027,524.55/3,603.15
  6. Step 6: Final answer
    x = 4,725.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.