Home / 4,179.87-6,268.05-1,405.87

Finding the Fourth Proportional to 4,179.87, 6,268.05 and 1,405.87

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Solution

The fourth proportional to 4,179.87, 6,268.05 and 1,405.87 is: 2,108.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.87 : 6,268.05 = 1,405.87 : x
  2. Step 2: Convert to fraction form
    4,179.87/6,268.05 = 1,405.87/x
  3. Step 3: Cross multiply
    4,179.87x = 6,268.05 × 1,405.87
  4. Step 4: Simplify right side
    4,179.87x = 8,812,047.78
  5. Step 5: Solve for x
    x = 8,812,047.78/4,179.87
  6. Step 6: Final answer
    x = 2,108.21

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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.