Home / 2,862.07-3,949.67-1,603.15

Finding the Fourth Proportional to 2,862.07, 3,949.67 and 1,603.15

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Solution

The fourth proportional to 2,862.07, 3,949.67 and 1,603.15 is: 2,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.07 : 3,949.67 = 1,603.15 : x
  2. Step 2: Convert to fraction form
    2,862.07/3,949.67 = 1,603.15/x
  3. Step 3: Cross multiply
    2,862.07x = 3,949.67 × 1,603.15
  4. Step 4: Simplify right side
    2,862.07x = 6,331,913.46
  5. Step 5: Solve for x
    x = 6,331,913.46/2,862.07
  6. Step 6: Final answer
    x = 2,212.35

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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.