Home / 6,712.65-9,261.18-3,879.99

Finding the Fourth Proportional to 6,712.65, 9,261.18 and 3,879.99

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Solution

The fourth proportional to 6,712.65, 9,261.18 and 3,879.99 is: 5,353.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.65 : 9,261.18 = 3,879.99 : x
  2. Step 2: Convert to fraction form
    6,712.65/9,261.18 = 3,879.99/x
  3. Step 3: Cross multiply
    6,712.65x = 9,261.18 × 3,879.99
  4. Step 4: Simplify right side
    6,712.65x = 35,933,285.79
  5. Step 5: Solve for x
    x = 35,933,285.79/6,712.65
  6. Step 6: Final answer
    x = 5,353.07

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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.