Home / 8,040.75-12,065.86-3,360.40

Finding the Fourth Proportional to 8,040.75, 12,065.86 and 3,360.40

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Solution

The fourth proportional to 8,040.75, 12,065.86 and 3,360.40 is: 5,042.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.75 : 12,065.86 = 3,360.40 : x
  2. Step 2: Convert to fraction form
    8,040.75/12,065.86 = 3,360.40/x
  3. Step 3: Cross multiply
    8,040.75x = 12,065.86 × 3,360.40
  4. Step 4: Simplify right side
    8,040.75x = 40,546,109.36
  5. Step 5: Solve for x
    x = 40,546,109.36/8,040.75
  6. Step 6: Final answer
    x = 5,042.58

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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.