Home / 4,939.90-7,413.48-3,977.62

Finding the Fourth Proportional to 4,939.90, 7,413.48 and 3,977.62

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Solution

The fourth proportional to 4,939.90, 7,413.48 and 3,977.62 is: 5,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.90 : 7,413.48 = 3,977.62 : x
  2. Step 2: Convert to fraction form
    4,939.90/7,413.48 = 3,977.62/x
  3. Step 3: Cross multiply
    4,939.90x = 7,413.48 × 3,977.62
  4. Step 4: Simplify right side
    4,939.90x = 29,488,006.32
  5. Step 5: Solve for x
    x = 29,488,006.32/4,939.90
  6. Step 6: Final answer
    x = 5,969.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.