Home / 2,862.27-3,949.83-1,603.40

Finding the Fourth Proportional to 2,862.27, 3,949.83 and 1,603.40

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Solution

The fourth proportional to 2,862.27, 3,949.83 and 1,603.40 is: 2,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.27 : 3,949.83 = 1,603.40 : x
  2. Step 2: Convert to fraction form
    2,862.27/3,949.83 = 1,603.40/x
  3. Step 3: Cross multiply
    2,862.27x = 3,949.83 × 1,603.40
  4. Step 4: Simplify right side
    2,862.27x = 6,333,137.67
  5. Step 5: Solve for x
    x = 6,333,137.67/2,862.27
  6. Step 6: Final answer
    x = 2,212.63

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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.