Home / 3,179.88-4,386.48-2,235.29

Finding the Fourth Proportional to 3,179.88, 4,386.48 and 2,235.29

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Solution

The fourth proportional to 3,179.88, 4,386.48 and 2,235.29 is: 3,083.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.88 : 4,386.48 = 2,235.29 : x
  2. Step 2: Convert to fraction form
    3,179.88/4,386.48 = 2,235.29/x
  3. Step 3: Cross multiply
    3,179.88x = 4,386.48 × 2,235.29
  4. Step 4: Simplify right side
    3,179.88x = 9,805,032.95
  5. Step 5: Solve for x
    x = 9,805,032.95/3,179.88
  6. Step 6: Final answer
    x = 3,083.46

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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.