Home / 4,021.38-6,031.79-1,247.99

Finding the Fourth Proportional to 4,021.38, 6,031.79 and 1,247.99

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Solution

The fourth proportional to 4,021.38, 6,031.79 and 1,247.99 is: 1,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.38 : 6,031.79 = 1,247.99 : x
  2. Step 2: Convert to fraction form
    4,021.38/6,031.79 = 1,247.99/x
  3. Step 3: Cross multiply
    4,021.38x = 6,031.79 × 1,247.99
  4. Step 4: Simplify right side
    4,021.38x = 7,527,577.20
  5. Step 5: Solve for x
    x = 7,527,577.20/4,021.38
  6. Step 6: Final answer
    x = 1,871.89

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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.