Home / 5,779.86-8,670.26-1,831.38

Finding the Fourth Proportional to 5,779.86, 8,670.26 and 1,831.38

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Solution

The fourth proportional to 5,779.86, 8,670.26 and 1,831.38 is: 2,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.86 : 8,670.26 = 1,831.38 : x
  2. Step 2: Convert to fraction form
    5,779.86/8,670.26 = 1,831.38/x
  3. Step 3: Cross multiply
    5,779.86x = 8,670.26 × 1,831.38
  4. Step 4: Simplify right side
    5,779.86x = 15,878,540.76
  5. Step 5: Solve for x
    x = 15,878,540.76/5,779.86
  6. Step 6: Final answer
    x = 2,747.22

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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.