Home / 4,128.87-6,194.68-1,665.77

Finding the Fourth Proportional to 4,128.87, 6,194.68 and 1,665.77

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Solution

The fourth proportional to 4,128.87, 6,194.68 and 1,665.77 is: 2,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.87 : 6,194.68 = 1,665.77 : x
  2. Step 2: Convert to fraction form
    4,128.87/6,194.68 = 1,665.77/x
  3. Step 3: Cross multiply
    4,128.87x = 6,194.68 × 1,665.77
  4. Step 4: Simplify right side
    4,128.87x = 10,318,876.97
  5. Step 5: Solve for x
    x = 10,318,876.97/4,128.87
  6. Step 6: Final answer
    x = 2,499.20

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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.