Home / 5,187.30-7,778.92-2,413.45

Finding the Fourth Proportional to 5,187.30, 7,778.92 and 2,413.45

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Solution

The fourth proportional to 5,187.30, 7,778.92 and 2,413.45 is: 3,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.30 : 7,778.92 = 2,413.45 : x
  2. Step 2: Convert to fraction form
    5,187.30/7,778.92 = 2,413.45/x
  3. Step 3: Cross multiply
    5,187.30x = 7,778.92 × 2,413.45
  4. Step 4: Simplify right side
    5,187.30x = 18,774,034.47
  5. Step 5: Solve for x
    x = 18,774,034.47/5,187.30
  6. Step 6: Final answer
    x = 3,619.23

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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.