Home / 4,199.76-6,299.66-1,278.05

Finding the Fourth Proportional to 4,199.76, 6,299.66 and 1,278.05

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Solution

The fourth proportional to 4,199.76, 6,299.66 and 1,278.05 is: 1,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.76 : 6,299.66 = 1,278.05 : x
  2. Step 2: Convert to fraction form
    4,199.76/6,299.66 = 1,278.05/x
  3. Step 3: Cross multiply
    4,199.76x = 6,299.66 × 1,278.05
  4. Step 4: Simplify right side
    4,199.76x = 8,051,242.57
  5. Step 5: Solve for x
    x = 8,051,242.57/4,199.76
  6. Step 6: Final answer
    x = 1,917.07

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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.