Home / 3,080.02-4,621.91-1,620.22

Finding the Fourth Proportional to 3,080.02, 4,621.91 and 1,620.22

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Solution

The fourth proportional to 3,080.02, 4,621.91 and 1,620.22 is: 2,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.02 : 4,621.91 = 1,620.22 : x
  2. Step 2: Convert to fraction form
    3,080.02/4,621.91 = 1,620.22/x
  3. Step 3: Cross multiply
    3,080.02x = 4,621.91 × 1,620.22
  4. Step 4: Simplify right side
    3,080.02x = 7,488,511.02
  5. Step 5: Solve for x
    x = 7,488,511.02/3,080.02
  6. Step 6: Final answer
    x = 2,431.32

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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.