Home / 3,185.14-4,395.48-1,787.89

Finding the Fourth Proportional to 3,185.14, 4,395.48 and 1,787.89

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Solution

The fourth proportional to 3,185.14, 4,395.48 and 1,787.89 is: 2,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.14 : 4,395.48 = 1,787.89 : x
  2. Step 2: Convert to fraction form
    3,185.14/4,395.48 = 1,787.89/x
  3. Step 3: Cross multiply
    3,185.14x = 4,395.48 × 1,787.89
  4. Step 4: Simplify right side
    3,185.14x = 7,858,634.74
  5. Step 5: Solve for x
    x = 7,858,634.74/3,185.14
  6. Step 6: Final answer
    x = 2,467.28

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1.5x scale

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.