Home / 3,110.22-4,665.36-770.27

Finding the Fourth Proportional to 3,110.22, 4,665.36 and 770.27

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Solution

The fourth proportional to 3,110.22, 4,665.36 and 770.27 is: 1,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.22 : 4,665.36 = 770.27 : x
  2. Step 2: Convert to fraction form
    3,110.22/4,665.36 = 770.27/x
  3. Step 3: Cross multiply
    3,110.22x = 4,665.36 × 770.27
  4. Step 4: Simplify right side
    3,110.22x = 3,593,563.52
  5. Step 5: Solve for x
    x = 3,593,563.52/3,110.22
  6. Step 6: Final answer
    x = 1,155.40

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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.