Home / 7,900.73-11,854.75-3,457.81

Finding the Fourth Proportional to 7,900.73, 11,854.75 and 3,457.81

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Solution

The fourth proportional to 7,900.73, 11,854.75 and 3,457.81 is: 5,188.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.73 : 11,854.75 = 3,457.81 : x
  2. Step 2: Convert to fraction form
    7,900.73/11,854.75 = 3,457.81/x
  3. Step 3: Cross multiply
    7,900.73x = 11,854.75 × 3,457.81
  4. Step 4: Simplify right side
    7,900.73x = 40,991,413.82
  5. Step 5: Solve for x
    x = 40,991,413.82/7,900.73
  6. Step 6: Final answer
    x = 5,188.31

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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.