Home / 3,378.33-5,067.47-1,430.25

Finding the Fourth Proportional to 3,378.33, 5,067.47 and 1,430.25

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Solution

The fourth proportional to 3,378.33, 5,067.47 and 1,430.25 is: 2,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.33 : 5,067.47 = 1,430.25 : x
  2. Step 2: Convert to fraction form
    3,378.33/5,067.47 = 1,430.25/x
  3. Step 3: Cross multiply
    3,378.33x = 5,067.47 × 1,430.25
  4. Step 4: Simplify right side
    3,378.33x = 7,247,741.82
  5. Step 5: Solve for x
    x = 7,247,741.82/3,378.33
  6. Step 6: Final answer
    x = 2,145.36

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1.5x scale

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.