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Finding the Fourth Proportional to 3,518.38, 4,855.08 and 1,946.50

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Solution

The fourth proportional to 3,518.38, 4,855.08 and 1,946.50 is: 2,686.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.38 : 4,855.08 = 1,946.50 : x
  2. Step 2: Convert to fraction form
    3,518.38/4,855.08 = 1,946.50/x
  3. Step 3: Cross multiply
    3,518.38x = 4,855.08 × 1,946.50
  4. Step 4: Simplify right side
    3,518.38x = 9,450,413.22
  5. Step 5: Solve for x
    x = 9,450,413.22/3,518.38
  6. Step 6: Final answer
    x = 2,686.01

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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.