Home / 7,718.86-10,651.96-4,181.98

Finding the Fourth Proportional to 7,718.86, 10,651.96 and 4,181.98

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Solution

The fourth proportional to 7,718.86, 10,651.96 and 4,181.98 is: 5,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.86 : 10,651.96 = 4,181.98 : x
  2. Step 2: Convert to fraction form
    7,718.86/10,651.96 = 4,181.98/x
  3. Step 3: Cross multiply
    7,718.86x = 10,651.96 × 4,181.98
  4. Step 4: Simplify right side
    7,718.86x = 44,546,283.68
  5. Step 5: Solve for x
    x = 44,546,283.68/7,718.86
  6. Step 6: Final answer
    x = 5,771.10

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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.