Home / 5,378.40-8,067.60-4,514.40

Finding the Fourth Proportional to 5,378.40, 8,067.60 and 4,514.40

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Solution

The fourth proportional to 5,378.40, 8,067.60 and 4,514.40 is: 6,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.40 : 8,067.60 = 4,514.40 : x
  2. Step 2: Convert to fraction form
    5,378.40/8,067.60 = 4,514.40/x
  3. Step 3: Cross multiply
    5,378.40x = 8,067.60 × 4,514.40
  4. Step 4: Simplify right side
    5,378.40x = 36,420,373.44
  5. Step 5: Solve for x
    x = 36,420,373.44/5,378.40
  6. Step 6: Final answer
    x = 6,771.60

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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.