Home / 7,977.04-11,970.36-2,786.56

Finding the Fourth Proportional to 7,977.04, 11,970.36 and 2,786.56

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Solution

The fourth proportional to 7,977.04, 11,970.36 and 2,786.56 is: 4,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.04 : 11,970.36 = 2,786.56 : x
  2. Step 2: Convert to fraction form
    7,977.04/11,970.36 = 2,786.56/x
  3. Step 3: Cross multiply
    7,977.04x = 11,970.36 × 2,786.56
  4. Step 4: Simplify right side
    7,977.04x = 33,356,126.36
  5. Step 5: Solve for x
    x = 33,356,126.36/7,977.04
  6. Step 6: Final answer
    x = 4,181.52

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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.