Home / 4,021.36-6,030.48-1,388.38

Finding the Fourth Proportional to 4,021.36, 6,030.48 and 1,388.38

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Solution

The fourth proportional to 4,021.36, 6,030.48 and 1,388.38 is: 2,082.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.36 : 6,030.48 = 1,388.38 : x
  2. Step 2: Convert to fraction form
    4,021.36/6,030.48 = 1,388.38/x
  3. Step 3: Cross multiply
    4,021.36x = 6,030.48 × 1,388.38
  4. Step 4: Simplify right side
    4,021.36x = 8,372,597.82
  5. Step 5: Solve for x
    x = 8,372,597.82/4,021.36
  6. Step 6: Final answer
    x = 2,082.03

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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.