Home / 2,511.75-3,764.92-1,123.19

Finding the Fourth Proportional to 2,511.75, 3,764.92 and 1,123.19

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Solution

The fourth proportional to 2,511.75, 3,764.92 and 1,123.19 is: 1,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.75 : 3,764.92 = 1,123.19 : x
  2. Step 2: Convert to fraction form
    2,511.75/3,764.92 = 1,123.19/x
  3. Step 3: Cross multiply
    2,511.75x = 3,764.92 × 1,123.19
  4. Step 4: Simplify right side
    2,511.75x = 4,228,720.49
  5. Step 5: Solve for x
    x = 4,228,720.49/2,511.75
  6. Step 6: Final answer
    x = 1,683.58

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Double scale
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Similar ratio
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1.5x scale

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.