Home / 2,205.81-3,045.33-1,959.80

Finding the Fourth Proportional to 2,205.81, 3,045.33 and 1,959.80

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Solution

The fourth proportional to 2,205.81, 3,045.33 and 1,959.80 is: 2,705.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.81 : 3,045.33 = 1,959.80 : x
  2. Step 2: Convert to fraction form
    2,205.81/3,045.33 = 1,959.80/x
  3. Step 3: Cross multiply
    2,205.81x = 3,045.33 × 1,959.80
  4. Step 4: Simplify right side
    2,205.81x = 5,968,222.51
  5. Step 5: Solve for x
    x = 5,968,222.51/2,205.81
  6. Step 6: Final answer
    x = 2,705.68

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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.