Home / 3,478.75-5,218.17-1,170.25

Finding the Fourth Proportional to 3,478.75, 5,218.17 and 1,170.25

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Solution

The fourth proportional to 3,478.75, 5,218.17 and 1,170.25 is: 1,755.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.75 : 5,218.17 = 1,170.25 : x
  2. Step 2: Convert to fraction form
    3,478.75/5,218.17 = 1,170.25/x
  3. Step 3: Cross multiply
    3,478.75x = 5,218.17 × 1,170.25
  4. Step 4: Simplify right side
    3,478.75x = 6,106,563.44
  5. Step 5: Solve for x
    x = 6,106,563.44/3,478.75
  6. Step 6: Final answer
    x = 1,755.39

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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.