Home / 4,200.88-6,299.52-1,278.64

Finding the Fourth Proportional to 4,200.88, 6,299.52 and 1,278.64

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Solution

The fourth proportional to 4,200.88, 6,299.52 and 1,278.64 is: 1,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.88 : 6,299.52 = 1,278.64 : x
  2. Step 2: Convert to fraction form
    4,200.88/6,299.52 = 1,278.64/x
  3. Step 3: Cross multiply
    4,200.88x = 6,299.52 × 1,278.64
  4. Step 4: Simplify right side
    4,200.88x = 8,054,818.25
  5. Step 5: Solve for x
    x = 8,054,818.25/4,200.88
  6. Step 6: Final answer
    x = 1,917.41

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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.