Home / 4,179.90-6,270.94-1,218.28

Finding the Fourth Proportional to 4,179.90, 6,270.94 and 1,218.28

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Solution

The fourth proportional to 4,179.90, 6,270.94 and 1,218.28 is: 1,827.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.90 : 6,270.94 = 1,218.28 : x
  2. Step 2: Convert to fraction form
    4,179.90/6,270.94 = 1,218.28/x
  3. Step 3: Cross multiply
    4,179.90x = 6,270.94 × 1,218.28
  4. Step 4: Simplify right side
    4,179.90x = 7,639,745.11
  5. Step 5: Solve for x
    x = 7,639,745.11/4,179.90
  6. Step 6: Final answer
    x = 1,827.73

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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.