Home / 4,185-6,277.32-1,719.72

Finding the Fourth Proportional to 4,185, 6,277.32 and 1,719.72

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Solution

The fourth proportional to 4,185, 6,277.32 and 1,719.72 is: 2,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185 : 6,277.32 = 1,719.72 : x
  2. Step 2: Convert to fraction form
    4,185/6,277.32 = 1,719.72/x
  3. Step 3: Cross multiply
    4,185x = 6,277.32 × 1,719.72
  4. Step 4: Simplify right side
    4,185x = 10,795,232.75
  5. Step 5: Solve for x
    x = 10,795,232.75/4,185
  6. Step 6: Final answer
    x = 2,579.51

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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.