Home / 2,862.10-3,949.70-1,603.16

Finding the Fourth Proportional to 2,862.10, 3,949.70 and 1,603.16

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Solution

The fourth proportional to 2,862.10, 3,949.70 and 1,603.16 is: 2,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.10 : 3,949.70 = 1,603.16 : x
  2. Step 2: Convert to fraction form
    2,862.10/3,949.70 = 1,603.16/x
  3. Step 3: Cross multiply
    2,862.10x = 3,949.70 × 1,603.16
  4. Step 4: Simplify right side
    2,862.10x = 6,332,001.05
  5. Step 5: Solve for x
    x = 6,332,001.05/2,862.10
  6. Step 6: Final answer
    x = 2,212.36

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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.