Home / 3,378.58-5,067.84-1,430.50

Finding the Fourth Proportional to 3,378.58, 5,067.84 and 1,430.50

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Solution

The fourth proportional to 3,378.58, 5,067.84 and 1,430.50 is: 2,145.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.58 : 5,067.84 = 1,430.50 : x
  2. Step 2: Convert to fraction form
    3,378.58/5,067.84 = 1,430.50/x
  3. Step 3: Cross multiply
    3,378.58x = 5,067.84 × 1,430.50
  4. Step 4: Simplify right side
    3,378.58x = 7,249,545.12
  5. Step 5: Solve for x
    x = 7,249,545.12/3,378.58
  6. Step 6: Final answer
    x = 2,145.74

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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.