Home / 2,862.16-3,949.44-1,603.28

Finding the Fourth Proportional to 2,862.16, 3,949.44 and 1,603.28

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Solution

The fourth proportional to 2,862.16, 3,949.44 and 1,603.28 is: 2,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.16 : 3,949.44 = 1,603.28 : x
  2. Step 2: Convert to fraction form
    2,862.16/3,949.44 = 1,603.28/x
  3. Step 3: Cross multiply
    2,862.16x = 3,949.44 × 1,603.28
  4. Step 4: Simplify right side
    2,862.16x = 6,332,058.16
  5. Step 5: Solve for x
    x = 6,332,058.16/2,862.16
  6. Step 6: Final answer
    x = 2,212.34

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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.