Home / 3,178.67-4,386.44-1,852.43

Finding the Fourth Proportional to 3,178.67, 4,386.44 and 1,852.43

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Solution

The fourth proportional to 3,178.67, 4,386.44 and 1,852.43 is: 2,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.67 : 4,386.44 = 1,852.43 : x
  2. Step 2: Convert to fraction form
    3,178.67/4,386.44 = 1,852.43/x
  3. Step 3: Cross multiply
    3,178.67x = 4,386.44 × 1,852.43
  4. Step 4: Simplify right side
    3,178.67x = 8,125,563.79
  5. Step 5: Solve for x
    x = 8,125,563.79/3,178.67
  6. Step 6: Final answer
    x = 2,556.28

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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.