Home / 4,021.70-6,031.07-1,388.54

Finding the Fourth Proportional to 4,021.70, 6,031.07 and 1,388.54

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Solution

The fourth proportional to 4,021.70, 6,031.07 and 1,388.54 is: 2,082.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.70 : 6,031.07 = 1,388.54 : x
  2. Step 2: Convert to fraction form
    4,021.70/6,031.07 = 1,388.54/x
  3. Step 3: Cross multiply
    4,021.70x = 6,031.07 × 1,388.54
  4. Step 4: Simplify right side
    4,021.70x = 8,374,355.25
  5. Step 5: Solve for x
    x = 8,374,355.25/4,021.70
  6. Step 6: Final answer
    x = 2,082.29

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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.