Home / 4,080.28-6,120.36-1,771.80

Finding the Fourth Proportional to 4,080.28, 6,120.36 and 1,771.80

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Solution

The fourth proportional to 4,080.28, 6,120.36 and 1,771.80 is: 2,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.28 : 6,120.36 = 1,771.80 : x
  2. Step 2: Convert to fraction form
    4,080.28/6,120.36 = 1,771.80/x
  3. Step 3: Cross multiply
    4,080.28x = 6,120.36 × 1,771.80
  4. Step 4: Simplify right side
    4,080.28x = 10,844,053.85
  5. Step 5: Solve for x
    x = 10,844,053.85/4,080.28
  6. Step 6: Final answer
    x = 2,657.67

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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.