Home / 7,731.26-11,586.09-3,831.74

Finding the Fourth Proportional to 7,731.26, 11,586.09 and 3,831.74

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Solution

The fourth proportional to 7,731.26, 11,586.09 and 3,831.74 is: 5,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.26 : 11,586.09 = 3,831.74 : x
  2. Step 2: Convert to fraction form
    7,731.26/11,586.09 = 3,831.74/x
  3. Step 3: Cross multiply
    7,731.26x = 11,586.09 × 3,831.74
  4. Step 4: Simplify right side
    7,731.26x = 44,394,884.50
  5. Step 5: Solve for x
    x = 44,394,884.50/7,731.26
  6. Step 6: Final answer
    x = 5,742.26

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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.