Home / 3,448.21-4,757.01-2,121.43

Finding the Fourth Proportional to 3,448.21, 4,757.01 and 2,121.43

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Solution

The fourth proportional to 3,448.21, 4,757.01 and 2,121.43 is: 2,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.21 : 4,757.01 = 2,121.43 : x
  2. Step 2: Convert to fraction form
    3,448.21/4,757.01 = 2,121.43/x
  3. Step 3: Cross multiply
    3,448.21x = 4,757.01 × 2,121.43
  4. Step 4: Simplify right side
    3,448.21x = 10,091,663.72
  5. Step 5: Solve for x
    x = 10,091,663.72/3,448.21
  6. Step 6: Final answer
    x = 2,926.64

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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.