Home / 2,106.95-3,160.42-1,181.12

Finding the Fourth Proportional to 2,106.95, 3,160.42 and 1,181.12

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Solution

The fourth proportional to 2,106.95, 3,160.42 and 1,181.12 is: 1,771.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.95 : 3,160.42 = 1,181.12 : x
  2. Step 2: Convert to fraction form
    2,106.95/3,160.42 = 1,181.12/x
  3. Step 3: Cross multiply
    2,106.95x = 3,160.42 × 1,181.12
  4. Step 4: Simplify right side
    2,106.95x = 3,732,816.52
  5. Step 5: Solve for x
    x = 3,732,816.52/2,106.95
  6. Step 6: Final answer
    x = 1,771.67

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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.