Home / 3,180.49-4,771.24-1,330.65

Finding the Fourth Proportional to 3,180.49, 4,771.24 and 1,330.65

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Solution

The fourth proportional to 3,180.49, 4,771.24 and 1,330.65 is: 1,996.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.49 : 4,771.24 = 1,330.65 : x
  2. Step 2: Convert to fraction form
    3,180.49/4,771.24 = 1,330.65/x
  3. Step 3: Cross multiply
    3,180.49x = 4,771.24 × 1,330.65
  4. Step 4: Simplify right side
    3,180.49x = 6,348,847.18
  5. Step 5: Solve for x
    x = 6,348,847.18/3,180.49
  6. Step 6: Final answer
    x = 1,996.19

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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.