Home / 1,786.12-2,464.44-1,039.90

Finding the Fourth Proportional to 1,786.12, 2,464.44 and 1,039.90

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Solution

The fourth proportional to 1,786.12, 2,464.44 and 1,039.90 is: 1,434.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.12 : 2,464.44 = 1,039.90 : x
  2. Step 2: Convert to fraction form
    1,786.12/2,464.44 = 1,039.90/x
  3. Step 3: Cross multiply
    1,786.12x = 2,464.44 × 1,039.90
  4. Step 4: Simplify right side
    1,786.12x = 2,562,771.16
  5. Step 5: Solve for x
    x = 2,562,771.16/1,786.12
  6. Step 6: Final answer
    x = 1,434.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.