Home / 3,872.07-5,343.44-2,103.71

Finding the Fourth Proportional to 3,872.07, 5,343.44 and 2,103.71

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Solution

The fourth proportional to 3,872.07, 5,343.44 and 2,103.71 is: 2,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.07 : 5,343.44 = 2,103.71 : x
  2. Step 2: Convert to fraction form
    3,872.07/5,343.44 = 2,103.71/x
  3. Step 3: Cross multiply
    3,872.07x = 5,343.44 × 2,103.71
  4. Step 4: Simplify right side
    3,872.07x = 11,241,010.93
  5. Step 5: Solve for x
    x = 11,241,010.93/3,872.07
  6. Step 6: Final answer
    x = 2,903.10

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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.