Home / 2,114.36-3,168.16-1,418.47

Finding the Fourth Proportional to 2,114.36, 3,168.16 and 1,418.47

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Solution

The fourth proportional to 2,114.36, 3,168.16 and 1,418.47 is: 2,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.36 : 3,168.16 = 1,418.47 : x
  2. Step 2: Convert to fraction form
    2,114.36/3,168.16 = 1,418.47/x
  3. Step 3: Cross multiply
    2,114.36x = 3,168.16 × 1,418.47
  4. Step 4: Simplify right side
    2,114.36x = 4,493,939.92
  5. Step 5: Solve for x
    x = 4,493,939.92/2,114.36
  6. Step 6: Final answer
    x = 2,125.44

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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.