Home / 4,761.69-7,138.75-2,161.59

Finding the Fourth Proportional to 4,761.69, 7,138.75 and 2,161.59

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Solution

The fourth proportional to 4,761.69, 7,138.75 and 2,161.59 is: 3,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.69 : 7,138.75 = 2,161.59 : x
  2. Step 2: Convert to fraction form
    4,761.69/7,138.75 = 2,161.59/x
  3. Step 3: Cross multiply
    4,761.69x = 7,138.75 × 2,161.59
  4. Step 4: Simplify right side
    4,761.69x = 15,431,050.61
  5. Step 5: Solve for x
    x = 15,431,050.61/4,761.69
  6. Step 6: Final answer
    x = 3,240.67

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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.