Home / 2,068.21-3,102.32-1,202.05

Finding the Fourth Proportional to 2,068.21, 3,102.32 and 1,202.05

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Solution

The fourth proportional to 2,068.21, 3,102.32 and 1,202.05 is: 1,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.21 : 3,102.32 = 1,202.05 : x
  2. Step 2: Convert to fraction form
    2,068.21/3,102.32 = 1,202.05/x
  3. Step 3: Cross multiply
    2,068.21x = 3,102.32 × 1,202.05
  4. Step 4: Simplify right side
    2,068.21x = 3,729,143.76
  5. Step 5: Solve for x
    x = 3,729,143.76/2,068.21
  6. Step 6: Final answer
    x = 1,803.08

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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.