Home / 6,919.64-10,382.48-3,631.92

Finding the Fourth Proportional to 6,919.64, 10,382.48 and 3,631.92

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Solution

The fourth proportional to 6,919.64, 10,382.48 and 3,631.92 is: 5,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.64 : 10,382.48 = 3,631.92 : x
  2. Step 2: Convert to fraction form
    6,919.64/10,382.48 = 3,631.92/x
  3. Step 3: Cross multiply
    6,919.64x = 10,382.48 × 3,631.92
  4. Step 4: Simplify right side
    6,919.64x = 37,708,336.76
  5. Step 5: Solve for x
    x = 37,708,336.76/6,919.64
  6. Step 6: Final answer
    x = 5,449.47

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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.