Home / 2,622.36-3,930.58-1,161.32

Finding the Fourth Proportional to 2,622.36, 3,930.58 and 1,161.32

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Solution

The fourth proportional to 2,622.36, 3,930.58 and 1,161.32 is: 1,740.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.36 : 3,930.58 = 1,161.32 : x
  2. Step 2: Convert to fraction form
    2,622.36/3,930.58 = 1,161.32/x
  3. Step 3: Cross multiply
    2,622.36x = 3,930.58 × 1,161.32
  4. Step 4: Simplify right side
    2,622.36x = 4,564,661.17
  5. Step 5: Solve for x
    x = 4,564,661.17/2,622.36
  6. Step 6: Final answer
    x = 1,740.67

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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.