Home / 4,199.80-6,299.73-1,278.13

Finding the Fourth Proportional to 4,199.80, 6,299.73 and 1,278.13

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Solution

The fourth proportional to 4,199.80, 6,299.73 and 1,278.13 is: 1,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.80 : 6,299.73 = 1,278.13 : x
  2. Step 2: Convert to fraction form
    4,199.80/6,299.73 = 1,278.13/x
  3. Step 3: Cross multiply
    4,199.80x = 6,299.73 × 1,278.13
  4. Step 4: Simplify right side
    4,199.80x = 8,051,873.90
  5. Step 5: Solve for x
    x = 8,051,873.90/4,199.80
  6. Step 6: Final answer
    x = 1,917.20

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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.