Home / 3,977.44-5,487.99-2,405.50

Finding the Fourth Proportional to 3,977.44, 5,487.99 and 2,405.50

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Solution

The fourth proportional to 3,977.44, 5,487.99 and 2,405.50 is: 3,319.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.44 : 5,487.99 = 2,405.50 : x
  2. Step 2: Convert to fraction form
    3,977.44/5,487.99 = 2,405.50/x
  3. Step 3: Cross multiply
    3,977.44x = 5,487.99 × 2,405.50
  4. Step 4: Simplify right side
    3,977.44x = 13,201,359.95
  5. Step 5: Solve for x
    x = 13,201,359.95/3,977.44
  6. Step 6: Final answer
    x = 3,319.06

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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.