Home / 7,410.86-11,116.32-2,731.28

Finding the Fourth Proportional to 7,410.86, 11,116.32 and 2,731.28

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Solution

The fourth proportional to 7,410.86, 11,116.32 and 2,731.28 is: 4,096.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.86 : 11,116.32 = 2,731.28 : x
  2. Step 2: Convert to fraction form
    7,410.86/11,116.32 = 2,731.28/x
  3. Step 3: Cross multiply
    7,410.86x = 11,116.32 × 2,731.28
  4. Step 4: Simplify right side
    7,410.86x = 30,361,782.49
  5. Step 5: Solve for x
    x = 30,361,782.49/7,410.86
  6. Step 6: Final answer
    x = 4,096.93

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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.