Home / 3,653.90-5,043.97-2,161.88

Finding the Fourth Proportional to 3,653.90, 5,043.97 and 2,161.88

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Solution

The fourth proportional to 3,653.90, 5,043.97 and 2,161.88 is: 2,984.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.90 : 5,043.97 = 2,161.88 : x
  2. Step 2: Convert to fraction form
    3,653.90/5,043.97 = 2,161.88/x
  3. Step 3: Cross multiply
    3,653.90x = 5,043.97 × 2,161.88
  4. Step 4: Simplify right side
    3,653.90x = 10,904,457.86
  5. Step 5: Solve for x
    x = 10,904,457.86/3,653.90
  6. Step 6: Final answer
    x = 2,984.33

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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.