Home / 6,121.73-8,447.91-3,603.95

Finding the Fourth Proportional to 6,121.73, 8,447.91 and 3,603.95

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Solution

The fourth proportional to 6,121.73, 8,447.91 and 3,603.95 is: 4,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.73 : 8,447.91 = 3,603.95 : x
  2. Step 2: Convert to fraction form
    6,121.73/8,447.91 = 3,603.95/x
  3. Step 3: Cross multiply
    6,121.73x = 8,447.91 × 3,603.95
  4. Step 4: Simplify right side
    6,121.73x = 30,445,841.44
  5. Step 5: Solve for x
    x = 30,445,841.44/6,121.73
  6. Step 6: Final answer
    x = 4,973.40

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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.