Home / 3,145.03-4,341.86-2,203.71

Finding the Fourth Proportional to 3,145.03, 4,341.86 and 2,203.71

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Solution

The fourth proportional to 3,145.03, 4,341.86 and 2,203.71 is: 3,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.03 : 4,341.86 = 2,203.71 : x
  2. Step 2: Convert to fraction form
    3,145.03/4,341.86 = 2,203.71/x
  3. Step 3: Cross multiply
    3,145.03x = 4,341.86 × 2,203.71
  4. Step 4: Simplify right side
    3,145.03x = 9,568,200.30
  5. Step 5: Solve for x
    x = 9,568,200.30/3,145.03
  6. Step 6: Final answer
    x = 3,042.32

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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.