Home / 4,021.54-6,031.16-1,388.36

Finding the Fourth Proportional to 4,021.54, 6,031.16 and 1,388.36

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Solution

The fourth proportional to 4,021.54, 6,031.16 and 1,388.36 is: 2,082.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.54 : 6,031.16 = 1,388.36 : x
  2. Step 2: Convert to fraction form
    4,021.54/6,031.16 = 1,388.36/x
  3. Step 3: Cross multiply
    4,021.54x = 6,031.16 × 1,388.36
  4. Step 4: Simplify right side
    4,021.54x = 8,373,414.36
  5. Step 5: Solve for x
    x = 8,373,414.36/4,021.54
  6. Step 6: Final answer
    x = 2,082.14

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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.