Home / 4,477.86-6,716.30-1,191.28

Finding the Fourth Proportional to 4,477.86, 6,716.30 and 1,191.28

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Solution

The fourth proportional to 4,477.86, 6,716.30 and 1,191.28 is: 1,786.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,477.86 : 6,716.30 = 1,191.28 : x
  2. Step 2: Convert to fraction form
    4,477.86/6,716.30 = 1,191.28/x
  3. Step 3: Cross multiply
    4,477.86x = 6,716.30 × 1,191.28
  4. Step 4: Simplify right side
    4,477.86x = 8,001,009.30
  5. Step 5: Solve for x
    x = 8,001,009.30/4,477.86
  6. Step 6: Final answer
    x = 1,786.79

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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.