Home / 2,185.85-3,011.64-1,949.84

Finding the Fourth Proportional to 2,185.85, 3,011.64 and 1,949.84

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Solution

The fourth proportional to 2,185.85, 3,011.64 and 1,949.84 is: 2,686.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.85 : 3,011.64 = 1,949.84 : x
  2. Step 2: Convert to fraction form
    2,185.85/3,011.64 = 1,949.84/x
  3. Step 3: Cross multiply
    2,185.85x = 3,011.64 × 1,949.84
  4. Step 4: Simplify right side
    2,185.85x = 5,872,205.06
  5. Step 5: Solve for x
    x = 5,872,205.06/2,185.85
  6. Step 6: Final answer
    x = 2,686.46

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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.