Home / 2,917.83-4,378.83-2,189.37

Finding the Fourth Proportional to 2,917.83, 4,378.83 and 2,189.37

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Solution

The fourth proportional to 2,917.83, 4,378.83 and 2,189.37 is: 3,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.83 : 4,378.83 = 2,189.37 : x
  2. Step 2: Convert to fraction form
    2,917.83/4,378.83 = 2,189.37/x
  3. Step 3: Cross multiply
    2,917.83x = 4,378.83 × 2,189.37
  4. Step 4: Simplify right side
    2,917.83x = 9,586,879.04
  5. Step 5: Solve for x
    x = 9,586,879.04/2,917.83
  6. Step 6: Final answer
    x = 3,285.62

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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.