Home / 2,191.45-3,287.67-730.60

Finding the Fourth Proportional to 2,191.45, 3,287.67 and 730.60

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Solution

The fourth proportional to 2,191.45, 3,287.67 and 730.60 is: 1,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.45 : 3,287.67 = 730.60 : x
  2. Step 2: Convert to fraction form
    2,191.45/3,287.67 = 730.60/x
  3. Step 3: Cross multiply
    2,191.45x = 3,287.67 × 730.60
  4. Step 4: Simplify right side
    2,191.45x = 2,401,971.70
  5. Step 5: Solve for x
    x = 2,401,971.70/2,191.45
  6. Step 6: Final answer
    x = 1,096.07

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1.5x scale

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.