Home / 3,418.83-5,130.24-1,338.75

Finding the Fourth Proportional to 3,418.83, 5,130.24 and 1,338.75

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Solution

The fourth proportional to 3,418.83, 5,130.24 and 1,338.75 is: 2,008.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.83 : 5,130.24 = 1,338.75 : x
  2. Step 2: Convert to fraction form
    3,418.83/5,130.24 = 1,338.75/x
  3. Step 3: Cross multiply
    3,418.83x = 5,130.24 × 1,338.75
  4. Step 4: Simplify right side
    3,418.83x = 6,868,108.80
  5. Step 5: Solve for x
    x = 6,868,108.80/3,418.83
  6. Step 6: Final answer
    x = 2,008.91

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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.