Home / 5,845-8,745.63-3,643.42

Finding the Fourth Proportional to 5,845, 8,745.63 and 3,643.42

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Solution

The fourth proportional to 5,845, 8,745.63 and 3,643.42 is: 5,451.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,845 : 8,745.63 = 3,643.42 : x
  2. Step 2: Convert to fraction form
    5,845/8,745.63 = 3,643.42/x
  3. Step 3: Cross multiply
    5,845x = 8,745.63 × 3,643.42
  4. Step 4: Simplify right side
    5,845x = 31,864,003.25
  5. Step 5: Solve for x
    x = 31,864,003.25/5,845
  6. Step 6: Final answer
    x = 5,451.50

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1.5x scale

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.