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Finding the Fourth Proportional to 5,939.42, 8,910.46 and 1,779.80

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Solution

The fourth proportional to 5,939.42, 8,910.46 and 1,779.80 is: 2,670.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.42 : 8,910.46 = 1,779.80 : x
  2. Step 2: Convert to fraction form
    5,939.42/8,910.46 = 1,779.80/x
  3. Step 3: Cross multiply
    5,939.42x = 8,910.46 × 1,779.80
  4. Step 4: Simplify right side
    5,939.42x = 15,858,836.71
  5. Step 5: Solve for x
    x = 15,858,836.71/5,939.42
  6. Step 6: Final answer
    x = 2,670.10

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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.