Home / 1,771.38-2,443.86-1,107.98

Finding the Fourth Proportional to 1,771.38, 2,443.86 and 1,107.98

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Solution

The fourth proportional to 1,771.38, 2,443.86 and 1,107.98 is: 1,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.38 : 2,443.86 = 1,107.98 : x
  2. Step 2: Convert to fraction form
    1,771.38/2,443.86 = 1,107.98/x
  3. Step 3: Cross multiply
    1,771.38x = 2,443.86 × 1,107.98
  4. Step 4: Simplify right side
    1,771.38x = 2,707,748.00
  5. Step 5: Solve for x
    x = 2,707,748.00/1,771.38
  6. Step 6: Final answer
    x = 1,528.61

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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.