Home / 2,918.60-4,382.00-2,786.35

Finding the Fourth Proportional to 2,918.60, 4,382.00 and 2,786.35

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Solution

The fourth proportional to 2,918.60, 4,382.00 and 2,786.35 is: 4,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.60 : 4,382.00 = 2,786.35 : x
  2. Step 2: Convert to fraction form
    2,918.60/4,382.00 = 2,786.35/x
  3. Step 3: Cross multiply
    2,918.60x = 4,382.00 × 2,786.35
  4. Step 4: Simplify right side
    2,918.60x = 12,209,749.86
  5. Step 5: Solve for x
    x = 12,209,749.86/2,918.60
  6. Step 6: Final answer
    x = 4,183.43

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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.