Home / 3,801.51-5,245.56-2,122.72

Finding the Fourth Proportional to 3,801.51, 5,245.56 and 2,122.72

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Solution

The fourth proportional to 3,801.51, 5,245.56 and 2,122.72 is: 2,929.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.51 : 5,245.56 = 2,122.72 : x
  2. Step 2: Convert to fraction form
    3,801.51/5,245.56 = 2,122.72/x
  3. Step 3: Cross multiply
    3,801.51x = 5,245.56 × 2,122.72
  4. Step 4: Simplify right side
    3,801.51x = 11,134,855.12
  5. Step 5: Solve for x
    x = 11,134,855.12/3,801.51
  6. Step 6: Final answer
    x = 2,929.06

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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.