Home / 2,137.40-3,206.80-1,362.24

Finding the Fourth Proportional to 2,137.40, 3,206.80 and 1,362.24

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Solution

The fourth proportional to 2,137.40, 3,206.80 and 1,362.24 is: 2,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.40 : 3,206.80 = 1,362.24 : x
  2. Step 2: Convert to fraction form
    2,137.40/3,206.80 = 1,362.24/x
  3. Step 3: Cross multiply
    2,137.40x = 3,206.80 × 1,362.24
  4. Step 4: Simplify right side
    2,137.40x = 4,368,431.23
  5. Step 5: Solve for x
    x = 4,368,431.23/2,137.40
  6. Step 6: Final answer
    x = 2,043.81

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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.