Home / 3,614.50-5,418.69-1,424.80

Finding the Fourth Proportional to 3,614.50, 5,418.69 and 1,424.80

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Solution

The fourth proportional to 3,614.50, 5,418.69 and 1,424.80 is: 2,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.50 : 5,418.69 = 1,424.80 : x
  2. Step 2: Convert to fraction form
    3,614.50/5,418.69 = 1,424.80/x
  3. Step 3: Cross multiply
    3,614.50x = 5,418.69 × 1,424.80
  4. Step 4: Simplify right side
    3,614.50x = 7,720,549.51
  5. Step 5: Solve for x
    x = 7,720,549.51/3,614.50
  6. Step 6: Final answer
    x = 2,135.99

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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.