Home / 5,188.76-7,779.48-2,589.86

Finding the Fourth Proportional to 5,188.76, 7,779.48 and 2,589.86

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Solution

The fourth proportional to 5,188.76, 7,779.48 and 2,589.86 is: 3,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.76 : 7,779.48 = 2,589.86 : x
  2. Step 2: Convert to fraction form
    5,188.76/7,779.48 = 2,589.86/x
  3. Step 3: Cross multiply
    5,188.76x = 7,779.48 × 2,589.86
  4. Step 4: Simplify right side
    5,188.76x = 20,147,764.07
  5. Step 5: Solve for x
    x = 20,147,764.07/5,188.76
  6. Step 6: Final answer
    x = 3,882.96

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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.