Home / 2,208.80-3,055.68-1,815.04

Finding the Fourth Proportional to 2,208.80, 3,055.68 and 1,815.04

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Solution

The fourth proportional to 2,208.80, 3,055.68 and 1,815.04 is: 2,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.80 : 3,055.68 = 1,815.04 : x
  2. Step 2: Convert to fraction form
    2,208.80/3,055.68 = 1,815.04/x
  3. Step 3: Cross multiply
    2,208.80x = 3,055.68 × 1,815.04
  4. Step 4: Simplify right side
    2,208.80x = 5,546,181.43
  5. Step 5: Solve for x
    x = 5,546,181.43/2,208.80
  6. Step 6: Final answer
    x = 2,510.95

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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.