Home / 3,175.35-4,379.13-2,055.12

Finding the Fourth Proportional to 3,175.35, 4,379.13 and 2,055.12

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Solution

The fourth proportional to 3,175.35, 4,379.13 and 2,055.12 is: 2,834.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.35 : 4,379.13 = 2,055.12 : x
  2. Step 2: Convert to fraction form
    3,175.35/4,379.13 = 2,055.12/x
  3. Step 3: Cross multiply
    3,175.35x = 4,379.13 × 2,055.12
  4. Step 4: Simplify right side
    3,175.35x = 8,999,645.86
  5. Step 5: Solve for x
    x = 8,999,645.86/3,175.35
  6. Step 6: Final answer
    x = 2,834.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.