Home / 5,645.21-8,468.84-1,896.60

Finding the Fourth Proportional to 5,645.21, 8,468.84 and 1,896.60

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Solution

The fourth proportional to 5,645.21, 8,468.84 and 1,896.60 is: 2,845.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.21 : 8,468.84 = 1,896.60 : x
  2. Step 2: Convert to fraction form
    5,645.21/8,468.84 = 1,896.60/x
  3. Step 3: Cross multiply
    5,645.21x = 8,468.84 × 1,896.60
  4. Step 4: Simplify right side
    5,645.21x = 16,061,992.46
  5. Step 5: Solve for x
    x = 16,061,992.46/5,645.21
  6. Step 6: Final answer
    x = 2,845.25

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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.