Home / 1,771.83-2,658.35-1,112.91

Finding the Fourth Proportional to 1,771.83, 2,658.35 and 1,112.91

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Solution

The fourth proportional to 1,771.83, 2,658.35 and 1,112.91 is: 1,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.83 : 2,658.35 = 1,112.91 : x
  2. Step 2: Convert to fraction form
    1,771.83/2,658.35 = 1,112.91/x
  3. Step 3: Cross multiply
    1,771.83x = 2,658.35 × 1,112.91
  4. Step 4: Simplify right side
    1,771.83x = 2,958,504.30
  5. Step 5: Solve for x
    x = 2,958,504.30/1,771.83
  6. Step 6: Final answer
    x = 1,669.75

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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.