Home / 3,128.10-4,694.04-1,180.19

Finding the Fourth Proportional to 3,128.10, 4,694.04 and 1,180.19

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Solution

The fourth proportional to 3,128.10, 4,694.04 and 1,180.19 is: 1,770.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.10 : 4,694.04 = 1,180.19 : x
  2. Step 2: Convert to fraction form
    3,128.10/4,694.04 = 1,180.19/x
  3. Step 3: Cross multiply
    3,128.10x = 4,694.04 × 1,180.19
  4. Step 4: Simplify right side
    3,128.10x = 5,539,835.60
  5. Step 5: Solve for x
    x = 5,539,835.60/3,128.10
  6. Step 6: Final answer
    x = 1,770.99

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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.