Home / 4,021.66-6,031-1,388.49

Finding the Fourth Proportional to 4,021.66, 6,031 and 1,388.49

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Solution

The fourth proportional to 4,021.66, 6,031 and 1,388.49 is: 2,082.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.66 : 6,031 = 1,388.49 : x
  2. Step 2: Convert to fraction form
    4,021.66/6,031 = 1,388.49/x
  3. Step 3: Cross multiply
    4,021.66x = 6,031 × 1,388.49
  4. Step 4: Simplify right side
    4,021.66x = 8,373,983.19
  5. Step 5: Solve for x
    x = 8,373,983.19/4,021.66
  6. Step 6: Final answer
    x = 2,082.22

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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.