Home / 3,378.08-5,067.09-1,430

Finding the Fourth Proportional to 3,378.08, 5,067.09 and 1,430

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Solution

The fourth proportional to 3,378.08, 5,067.09 and 1,430 is: 2,144.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.08 : 5,067.09 = 1,430 : x
  2. Step 2: Convert to fraction form
    3,378.08/5,067.09 = 1,430/x
  3. Step 3: Cross multiply
    3,378.08x = 5,067.09 × 1,430
  4. Step 4: Simplify right side
    3,378.08x = 7,245,938.70
  5. Step 5: Solve for x
    x = 7,245,938.70/3,378.08
  6. Step 6: Final answer
    x = 2,144.99

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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.