Home / 3,380.24-5,069.32-1,188.45

Finding the Fourth Proportional to 3,380.24, 5,069.32 and 1,188.45

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Solution

The fourth proportional to 3,380.24, 5,069.32 and 1,188.45 is: 1,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.24 : 5,069.32 = 1,188.45 : x
  2. Step 2: Convert to fraction form
    3,380.24/5,069.32 = 1,188.45/x
  3. Step 3: Cross multiply
    3,380.24x = 5,069.32 × 1,188.45
  4. Step 4: Simplify right side
    3,380.24x = 6,024,633.35
  5. Step 5: Solve for x
    x = 6,024,633.35/3,380.24
  6. Step 6: Final answer
    x = 1,782.31

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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.