Home / 5,816.20-8,725.20-1,919.56

Finding the Fourth Proportional to 5,816.20, 8,725.20 and 1,919.56

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Solution

The fourth proportional to 5,816.20, 8,725.20 and 1,919.56 is: 2,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,816.20 : 8,725.20 = 1,919.56 : x
  2. Step 2: Convert to fraction form
    5,816.20/8,725.20 = 1,919.56/x
  3. Step 3: Cross multiply
    5,816.20x = 8,725.20 × 1,919.56
  4. Step 4: Simplify right side
    5,816.20x = 16,748,544.91
  5. Step 5: Solve for x
    x = 16,748,544.91/5,816.20
  6. Step 6: Final answer
    x = 2,879.64

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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.