Home / 5,049.86-6,968.31-2,811.65

Finding the Fourth Proportional to 5,049.86, 6,968.31 and 2,811.65

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Solution

The fourth proportional to 5,049.86, 6,968.31 and 2,811.65 is: 3,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.86 : 6,968.31 = 2,811.65 : x
  2. Step 2: Convert to fraction form
    5,049.86/6,968.31 = 2,811.65/x
  3. Step 3: Cross multiply
    5,049.86x = 6,968.31 × 2,811.65
  4. Step 4: Simplify right side
    5,049.86x = 19,592,448.81
  5. Step 5: Solve for x
    x = 19,592,448.81/5,049.86
  6. Step 6: Final answer
    x = 3,879.80

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1.5x scale

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.