Home / 8,106.28-12,161.46-2,559.40

Finding the Fourth Proportional to 8,106.28, 12,161.46 and 2,559.40

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Solution

The fourth proportional to 8,106.28, 12,161.46 and 2,559.40 is: 3,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.28 : 12,161.46 = 2,559.40 : x
  2. Step 2: Convert to fraction form
    8,106.28/12,161.46 = 2,559.40/x
  3. Step 3: Cross multiply
    8,106.28x = 12,161.46 × 2,559.40
  4. Step 4: Simplify right side
    8,106.28x = 31,126,040.72
  5. Step 5: Solve for x
    x = 31,126,040.72/8,106.28
  6. Step 6: Final answer
    x = 3,839.74

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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.