Home / 2,485.90-3,725.35-1,963.61

Finding the Fourth Proportional to 2,485.90, 3,725.35 and 1,963.61

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Solution

The fourth proportional to 2,485.90, 3,725.35 and 1,963.61 is: 2,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.90 : 3,725.35 = 1,963.61 : x
  2. Step 2: Convert to fraction form
    2,485.90/3,725.35 = 1,963.61/x
  3. Step 3: Cross multiply
    2,485.90x = 3,725.35 × 1,963.61
  4. Step 4: Simplify right side
    2,485.90x = 7,315,134.51
  5. Step 5: Solve for x
    x = 7,315,134.51/2,485.90
  6. Step 6: Final answer
    x = 2,942.65

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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.