Home / 3,478.88-5,218.19-1,170.38

Finding the Fourth Proportional to 3,478.88, 5,218.19 and 1,170.38

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Solution

The fourth proportional to 3,478.88, 5,218.19 and 1,170.38 is: 1,755.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.88 : 5,218.19 = 1,170.38 : x
  2. Step 2: Convert to fraction form
    3,478.88/5,218.19 = 1,170.38/x
  3. Step 3: Cross multiply
    3,478.88x = 5,218.19 × 1,170.38
  4. Step 4: Simplify right side
    3,478.88x = 6,107,259.36
  5. Step 5: Solve for x
    x = 6,107,259.36/3,478.88
  6. Step 6: Final answer
    x = 1,755.52

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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.