Home / 4,299.86-6,449.87-1,378.17

Finding the Fourth Proportional to 4,299.86, 6,449.87 and 1,378.17

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Solution

The fourth proportional to 4,299.86, 6,449.87 and 1,378.17 is: 2,067.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,299.86 : 6,449.87 = 1,378.17 : x
  2. Step 2: Convert to fraction form
    4,299.86/6,449.87 = 1,378.17/x
  3. Step 3: Cross multiply
    4,299.86x = 6,449.87 × 1,378.17
  4. Step 4: Simplify right side
    4,299.86x = 8,889,020.78
  5. Step 5: Solve for x
    x = 8,889,020.78/4,299.86
  6. Step 6: Final answer
    x = 2,067.28

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1.5x scale

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.