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Finding the Fourth Proportional to 5,939.41, 8,909.12 and 1,779.86

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Solution

The fourth proportional to 5,939.41, 8,909.12 and 1,779.86 is: 2,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.41 : 8,909.12 = 1,779.86 : x
  2. Step 2: Convert to fraction form
    5,939.41/8,909.12 = 1,779.86/x
  3. Step 3: Cross multiply
    5,939.41x = 8,909.12 × 1,779.86
  4. Step 4: Simplify right side
    5,939.41x = 15,856,986.32
  5. Step 5: Solve for x
    x = 15,856,986.32/5,939.41
  6. Step 6: Final answer
    x = 2,669.79

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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.