Home / 4,080.55-6,120.02-1,999.66

Finding the Fourth Proportional to 4,080.55, 6,120.02 and 1,999.66

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Solution

The fourth proportional to 4,080.55, 6,120.02 and 1,999.66 is: 2,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.55 : 6,120.02 = 1,999.66 : x
  2. Step 2: Convert to fraction form
    4,080.55/6,120.02 = 1,999.66/x
  3. Step 3: Cross multiply
    4,080.55x = 6,120.02 × 1,999.66
  4. Step 4: Simplify right side
    4,080.55x = 12,237,959.19
  5. Step 5: Solve for x
    x = 12,237,959.19/4,080.55
  6. Step 6: Final answer
    x = 2,999.10

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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.