Home / 3,080.95-4,243.08-2,883.31

Finding the Fourth Proportional to 3,080.95, 4,243.08 and 2,883.31

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Solution

The fourth proportional to 3,080.95, 4,243.08 and 2,883.31 is: 3,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.95 : 4,243.08 = 2,883.31 : x
  2. Step 2: Convert to fraction form
    3,080.95/4,243.08 = 2,883.31/x
  3. Step 3: Cross multiply
    3,080.95x = 4,243.08 × 2,883.31
  4. Step 4: Simplify right side
    3,080.95x = 12,234,114.99
  5. Step 5: Solve for x
    x = 12,234,114.99/3,080.95
  6. Step 6: Final answer
    x = 3,970.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.