Home / 3,175.39-4,382.46-1,917.16

Finding the Fourth Proportional to 3,175.39, 4,382.46 and 1,917.16

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Solution

The fourth proportional to 3,175.39, 4,382.46 and 1,917.16 is: 2,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.39 : 4,382.46 = 1,917.16 : x
  2. Step 2: Convert to fraction form
    3,175.39/4,382.46 = 1,917.16/x
  3. Step 3: Cross multiply
    3,175.39x = 4,382.46 × 1,917.16
  4. Step 4: Simplify right side
    3,175.39x = 8,401,877.01
  5. Step 5: Solve for x
    x = 8,401,877.01/3,175.39
  6. Step 6: Final answer
    x = 2,645.94

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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.