Home / 5,235.13-7,224.60-2,877.31

Finding the Fourth Proportional to 5,235.13, 7,224.60 and 2,877.31

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Solution

The fourth proportional to 5,235.13, 7,224.60 and 2,877.31 is: 3,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.13 : 7,224.60 = 2,877.31 : x
  2. Step 2: Convert to fraction form
    5,235.13/7,224.60 = 2,877.31/x
  3. Step 3: Cross multiply
    5,235.13x = 7,224.60 × 2,877.31
  4. Step 4: Simplify right side
    5,235.13x = 20,787,413.83
  5. Step 5: Solve for x
    x = 20,787,413.83/5,235.13
  6. Step 6: Final answer
    x = 3,970.75

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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.