Home / 4,086.90-6,127.83-1,620.63

Finding the Fourth Proportional to 4,086.90, 6,127.83 and 1,620.63

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Solution

The fourth proportional to 4,086.90, 6,127.83 and 1,620.63 is: 2,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.90 : 6,127.83 = 1,620.63 : x
  2. Step 2: Convert to fraction form
    4,086.90/6,127.83 = 1,620.63/x
  3. Step 3: Cross multiply
    4,086.90x = 6,127.83 × 1,620.63
  4. Step 4: Simplify right side
    4,086.90x = 9,930,945.13
  5. Step 5: Solve for x
    x = 9,930,945.13/4,086.90
  6. Step 6: Final answer
    x = 2,429.95

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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.