Home / 2,817.50-4,226.26-969.15

Finding the Fourth Proportional to 2,817.50, 4,226.26 and 969.15

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Solution

The fourth proportional to 2,817.50, 4,226.26 and 969.15 is: 1,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.50 : 4,226.26 = 969.15 : x
  2. Step 2: Convert to fraction form
    2,817.50/4,226.26 = 969.15/x
  3. Step 3: Cross multiply
    2,817.50x = 4,226.26 × 969.15
  4. Step 4: Simplify right side
    2,817.50x = 4,095,879.88
  5. Step 5: Solve for x
    x = 4,095,879.88/2,817.50
  6. Step 6: Final answer
    x = 1,453.73

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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.