Home / 2,803.80-4,205.70-2,743.05

Finding the Fourth Proportional to 2,803.80, 4,205.70 and 2,743.05

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Solution

The fourth proportional to 2,803.80, 4,205.70 and 2,743.05 is: 4,114.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.80 : 4,205.70 = 2,743.05 : x
  2. Step 2: Convert to fraction form
    2,803.80/4,205.70 = 2,743.05/x
  3. Step 3: Cross multiply
    2,803.80x = 4,205.70 × 2,743.05
  4. Step 4: Simplify right side
    2,803.80x = 11,536,445.39
  5. Step 5: Solve for x
    x = 11,536,445.39/2,803.80
  6. Step 6: Final answer
    x = 4,114.58

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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.