Home / 2,253.42-3,381.75-1,388.34

Finding the Fourth Proportional to 2,253.42, 3,381.75 and 1,388.34

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Solution

The fourth proportional to 2,253.42, 3,381.75 and 1,388.34 is: 2,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.42 : 3,381.75 = 1,388.34 : x
  2. Step 2: Convert to fraction form
    2,253.42/3,381.75 = 1,388.34/x
  3. Step 3: Cross multiply
    2,253.42x = 3,381.75 × 1,388.34
  4. Step 4: Simplify right side
    2,253.42x = 4,695,018.80
  5. Step 5: Solve for x
    x = 4,695,018.80/2,253.42
  6. Step 6: Final answer
    x = 2,083.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.