Home / 4,589.62-6,879.69-1,815.17

Finding the Fourth Proportional to 4,589.62, 6,879.69 and 1,815.17

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Solution

The fourth proportional to 4,589.62, 6,879.69 and 1,815.17 is: 2,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,589.62 : 6,879.69 = 1,815.17 : x
  2. Step 2: Convert to fraction form
    4,589.62/6,879.69 = 1,815.17/x
  3. Step 3: Cross multiply
    4,589.62x = 6,879.69 × 1,815.17
  4. Step 4: Simplify right side
    4,589.62x = 12,487,772.50
  5. Step 5: Solve for x
    x = 12,487,772.50/4,589.62
  6. Step 6: Final answer
    x = 2,720.87

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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.