Home / 2,862.36-3,949.92-1,603.26

Finding the Fourth Proportional to 2,862.36, 3,949.92 and 1,603.26

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Solution

The fourth proportional to 2,862.36, 3,949.92 and 1,603.26 is: 2,212.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.36 : 3,949.92 = 1,603.26 : x
  2. Step 2: Convert to fraction form
    2,862.36/3,949.92 = 1,603.26/x
  3. Step 3: Cross multiply
    2,862.36x = 3,949.92 × 1,603.26
  4. Step 4: Simplify right side
    2,862.36x = 6,332,748.74
  5. Step 5: Solve for x
    x = 6,332,748.74/2,862.36
  6. Step 6: Final answer
    x = 2,212.42

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1.5x scale

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.