Home / 2,984.80-4,478.73-1,231.15

Finding the Fourth Proportional to 2,984.80, 4,478.73 and 1,231.15

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Solution

The fourth proportional to 2,984.80, 4,478.73 and 1,231.15 is: 1,847.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.80 : 4,478.73 = 1,231.15 : x
  2. Step 2: Convert to fraction form
    2,984.80/4,478.73 = 1,231.15/x
  3. Step 3: Cross multiply
    2,984.80x = 4,478.73 × 1,231.15
  4. Step 4: Simplify right side
    2,984.80x = 5,513,988.44
  5. Step 5: Solve for x
    x = 5,513,988.44/2,984.80
  6. Step 6: Final answer
    x = 1,847.36

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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.