Home / 3,178.37-4,770.48-1,619.48

Finding the Fourth Proportional to 3,178.37, 4,770.48 and 1,619.48

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Solution

The fourth proportional to 3,178.37, 4,770.48 and 1,619.48 is: 2,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.37 : 4,770.48 = 1,619.48 : x
  2. Step 2: Convert to fraction form
    3,178.37/4,770.48 = 1,619.48/x
  3. Step 3: Cross multiply
    3,178.37x = 4,770.48 × 1,619.48
  4. Step 4: Simplify right side
    3,178.37x = 7,725,708.88
  5. Step 5: Solve for x
    x = 7,725,708.88/3,178.37
  6. Step 6: Final answer
    x = 2,430.72

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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.