Home / 5,850.86-8,779.77-2,155.68

Finding the Fourth Proportional to 5,850.86, 8,779.77 and 2,155.68

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Solution

The fourth proportional to 5,850.86, 8,779.77 and 2,155.68 is: 3,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,850.86 : 8,779.77 = 2,155.68 : x
  2. Step 2: Convert to fraction form
    5,850.86/8,779.77 = 2,155.68/x
  3. Step 3: Cross multiply
    5,850.86x = 8,779.77 × 2,155.68
  4. Step 4: Simplify right side
    5,850.86x = 18,926,374.59
  5. Step 5: Solve for x
    x = 18,926,374.59/5,850.86
  6. Step 6: Final answer
    x = 3,234.80

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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.