Home / 2,911.10-4,366.17-936.63

Finding the Fourth Proportional to 2,911.10, 4,366.17 and 936.63

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Solution

The fourth proportional to 2,911.10, 4,366.17 and 936.63 is: 1,404.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.10 : 4,366.17 = 936.63 : x
  2. Step 2: Convert to fraction form
    2,911.10/4,366.17 = 936.63/x
  3. Step 3: Cross multiply
    2,911.10x = 4,366.17 × 936.63
  4. Step 4: Simplify right side
    2,911.10x = 4,089,485.81
  5. Step 5: Solve for x
    x = 4,089,485.81/2,911.10
  6. Step 6: Final answer
    x = 1,404.79

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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.