Home / 4,200.10-6,299.73-1,278.43

Finding the Fourth Proportional to 4,200.10, 6,299.73 and 1,278.43

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Solution

The fourth proportional to 4,200.10, 6,299.73 and 1,278.43 is: 1,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.10 : 6,299.73 = 1,278.43 : x
  2. Step 2: Convert to fraction form
    4,200.10/6,299.73 = 1,278.43/x
  3. Step 3: Cross multiply
    4,200.10x = 6,299.73 × 1,278.43
  4. Step 4: Simplify right side
    4,200.10x = 8,053,763.82
  5. Step 5: Solve for x
    x = 8,053,763.82/4,200.10
  6. Step 6: Final answer
    x = 1,917.52

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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.