Home / 2,603.63-3,905.79-1,371.11

Finding the Fourth Proportional to 2,603.63, 3,905.79 and 1,371.11

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Solution

The fourth proportional to 2,603.63, 3,905.79 and 1,371.11 is: 2,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.63 : 3,905.79 = 1,371.11 : x
  2. Step 2: Convert to fraction form
    2,603.63/3,905.79 = 1,371.11/x
  3. Step 3: Cross multiply
    2,603.63x = 3,905.79 × 1,371.11
  4. Step 4: Simplify right side
    2,603.63x = 5,355,267.73
  5. Step 5: Solve for x
    x = 5,355,267.73/2,603.63
  6. Step 6: Final answer
    x = 2,056.85

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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.