Home / 7,580.30-11,365.28-3,879.51

Finding the Fourth Proportional to 7,580.30, 11,365.28 and 3,879.51

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Solution

The fourth proportional to 7,580.30, 11,365.28 and 3,879.51 is: 5,816.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.30 : 11,365.28 = 3,879.51 : x
  2. Step 2: Convert to fraction form
    7,580.30/11,365.28 = 3,879.51/x
  3. Step 3: Cross multiply
    7,580.30x = 11,365.28 × 3,879.51
  4. Step 4: Simplify right side
    7,580.30x = 44,091,669.94
  5. Step 5: Solve for x
    x = 44,091,669.94/7,580.30
  6. Step 6: Final answer
    x = 5,816.62

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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.