Home / 3,119.36-4,677.67-1,170.20

Finding the Fourth Proportional to 3,119.36, 4,677.67 and 1,170.20

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Solution

The fourth proportional to 3,119.36, 4,677.67 and 1,170.20 is: 1,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.36 : 4,677.67 = 1,170.20 : x
  2. Step 2: Convert to fraction form
    3,119.36/4,677.67 = 1,170.20/x
  3. Step 3: Cross multiply
    3,119.36x = 4,677.67 × 1,170.20
  4. Step 4: Simplify right side
    3,119.36x = 5,473,786.05
  5. Step 5: Solve for x
    x = 5,473,786.05/3,119.36
  6. Step 6: Final answer
    x = 1,754.78

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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.