Home / 3,872.19-5,342.45-2,193.33

Finding the Fourth Proportional to 3,872.19, 5,342.45 and 2,193.33

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Solution

The fourth proportional to 3,872.19, 5,342.45 and 2,193.33 is: 3,026.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,872.19 : 5,342.45 = 2,193.33 : x
  2. Step 2: Convert to fraction form
    3,872.19/5,342.45 = 2,193.33/x
  3. Step 3: Cross multiply
    3,872.19x = 5,342.45 × 2,193.33
  4. Step 4: Simplify right side
    3,872.19x = 11,717,744.89
  5. Step 5: Solve for x
    x = 11,717,744.89/3,872.19
  6. Step 6: Final answer
    x = 3,026.13

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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.