Home / 4,945.81-6,828.40-4,413.78

Finding the Fourth Proportional to 4,945.81, 6,828.40 and 4,413.78

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Solution

The fourth proportional to 4,945.81, 6,828.40 and 4,413.78 is: 6,093.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.81 : 6,828.40 = 4,413.78 : x
  2. Step 2: Convert to fraction form
    4,945.81/6,828.40 = 4,413.78/x
  3. Step 3: Cross multiply
    4,945.81x = 6,828.40 × 4,413.78
  4. Step 4: Simplify right side
    4,945.81x = 30,139,010.18
  5. Step 5: Solve for x
    x = 30,139,010.18/4,945.81
  6. Step 6: Final answer
    x = 6,093.85

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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.