Home / 2,137.12-3,203.52-1,974.40

Finding the Fourth Proportional to 2,137.12, 3,203.52 and 1,974.40

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Solution

The fourth proportional to 2,137.12, 3,203.52 and 1,974.40 is: 2,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.12 : 3,203.52 = 1,974.40 : x
  2. Step 2: Convert to fraction form
    2,137.12/3,203.52 = 1,974.40/x
  3. Step 3: Cross multiply
    2,137.12x = 3,203.52 × 1,974.40
  4. Step 4: Simplify right side
    2,137.12x = 6,325,029.89
  5. Step 5: Solve for x
    x = 6,325,029.89/2,137.12
  6. Step 6: Final answer
    x = 2,959.60

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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.