Home / 4,200.19-6,299.84-1,278.52

Finding the Fourth Proportional to 4,200.19, 6,299.84 and 1,278.52

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Solution

The fourth proportional to 4,200.19, 6,299.84 and 1,278.52 is: 1,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.19 : 6,299.84 = 1,278.52 : x
  2. Step 2: Convert to fraction form
    4,200.19/6,299.84 = 1,278.52/x
  3. Step 3: Cross multiply
    4,200.19x = 6,299.84 × 1,278.52
  4. Step 4: Simplify right side
    4,200.19x = 8,054,458.88
  5. Step 5: Solve for x
    x = 8,054,458.88/4,200.19
  6. Step 6: Final answer
    x = 1,917.64

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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.