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Finding the Fourth Proportional to 6,779.10, 9,354.08 and 3,946.92

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Solution

The fourth proportional to 6,779.10, 9,354.08 and 3,946.92 is: 5,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.10 : 9,354.08 = 3,946.92 : x
  2. Step 2: Convert to fraction form
    6,779.10/9,354.08 = 3,946.92/x
  3. Step 3: Cross multiply
    6,779.10x = 9,354.08 × 3,946.92
  4. Step 4: Simplify right side
    6,779.10x = 36,919,805.43
  5. Step 5: Solve for x
    x = 36,919,805.43/6,779.10
  6. Step 6: Final answer
    x = 5,446.12

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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.