Home / 3,378.24-5,067.36-1,430.72

Finding the Fourth Proportional to 3,378.24, 5,067.36 and 1,430.72

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Solution

The fourth proportional to 3,378.24, 5,067.36 and 1,430.72 is: 2,146.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.24 : 5,067.36 = 1,430.72 : x
  2. Step 2: Convert to fraction form
    3,378.24/5,067.36 = 1,430.72/x
  3. Step 3: Cross multiply
    3,378.24x = 5,067.36 × 1,430.72
  4. Step 4: Simplify right side
    3,378.24x = 7,249,973.30
  5. Step 5: Solve for x
    x = 7,249,973.30/3,378.24
  6. Step 6: Final answer
    x = 2,146.08

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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.