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Finding the Fourth Proportional to 6,763.38, 9,333.44 and 3,779.22

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Solution

The fourth proportional to 6,763.38, 9,333.44 and 3,779.22 is: 5,215.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,763.38 : 9,333.44 = 3,779.22 : x
  2. Step 2: Convert to fraction form
    6,763.38/9,333.44 = 3,779.22/x
  3. Step 3: Cross multiply
    6,763.38x = 9,333.44 × 3,779.22
  4. Step 4: Simplify right side
    6,763.38x = 35,273,123.12
  5. Step 5: Solve for x
    x = 35,273,123.12/6,763.38
  6. Step 6: Final answer
    x = 5,215.31

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Double scale
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1.5x scale

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.