Home / 6,418.38-9,618.35-3,779.66

Finding the Fourth Proportional to 6,418.38, 9,618.35 and 3,779.66

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Solution

The fourth proportional to 6,418.38, 9,618.35 and 3,779.66 is: 5,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.38 : 9,618.35 = 3,779.66 : x
  2. Step 2: Convert to fraction form
    6,418.38/9,618.35 = 3,779.66/x
  3. Step 3: Cross multiply
    6,418.38x = 9,618.35 × 3,779.66
  4. Step 4: Simplify right side
    6,418.38x = 36,354,092.76
  5. Step 5: Solve for x
    x = 36,354,092.76/6,418.38
  6. Step 6: Final answer
    x = 5,664.06

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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.