Home / 1,853.33-2,778.58-1,122.71

Finding the Fourth Proportional to 1,853.33, 2,778.58 and 1,122.71

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Solution

The fourth proportional to 1,853.33, 2,778.58 and 1,122.71 is: 1,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853.33 : 2,778.58 = 1,122.71 : x
  2. Step 2: Convert to fraction form
    1,853.33/2,778.58 = 1,122.71/x
  3. Step 3: Cross multiply
    1,853.33x = 2,778.58 × 1,122.71
  4. Step 4: Simplify right side
    1,853.33x = 3,119,539.55
  5. Step 5: Solve for x
    x = 3,119,539.55/1,853.33
  6. Step 6: Final answer
    x = 1,683.21

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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.