Home / 5,457.28-8,188.80-2,379.52

Finding the Fourth Proportional to 5,457.28, 8,188.80 and 2,379.52

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Solution

The fourth proportional to 5,457.28, 8,188.80 and 2,379.52 is: 3,570.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.28 : 8,188.80 = 2,379.52 : x
  2. Step 2: Convert to fraction form
    5,457.28/8,188.80 = 2,379.52/x
  3. Step 3: Cross multiply
    5,457.28x = 8,188.80 × 2,379.52
  4. Step 4: Simplify right side
    5,457.28x = 19,485,413.38
  5. Step 5: Solve for x
    x = 19,485,413.38/5,457.28
  6. Step 6: Final answer
    x = 3,570.54

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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.