Home / 5,415.44-8,121.91-1,716.98

Finding the Fourth Proportional to 5,415.44, 8,121.91 and 1,716.98

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Solution

The fourth proportional to 5,415.44, 8,121.91 and 1,716.98 is: 2,575.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.44 : 8,121.91 = 1,716.98 : x
  2. Step 2: Convert to fraction form
    5,415.44/8,121.91 = 1,716.98/x
  3. Step 3: Cross multiply
    5,415.44x = 8,121.91 × 1,716.98
  4. Step 4: Simplify right side
    5,415.44x = 13,945,132.43
  5. Step 5: Solve for x
    x = 13,945,132.43/5,415.44
  6. Step 6: Final answer
    x = 2,575.07

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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.