Home / 3,080.16-4,619.23-1,230.80

Finding the Fourth Proportional to 3,080.16, 4,619.23 and 1,230.80

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Solution

The fourth proportional to 3,080.16, 4,619.23 and 1,230.80 is: 1,845.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.16 : 4,619.23 = 1,230.80 : x
  2. Step 2: Convert to fraction form
    3,080.16/4,619.23 = 1,230.80/x
  3. Step 3: Cross multiply
    3,080.16x = 4,619.23 × 1,230.80
  4. Step 4: Simplify right side
    3,080.16x = 5,685,322.11
  5. Step 5: Solve for x
    x = 5,685,322.11/3,080.16
  6. Step 6: Final answer
    x = 1,845.79

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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.