Home / 4,199.78-6,299.43-1,277.85

Finding the Fourth Proportional to 4,199.78, 6,299.43 and 1,277.85

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Solution

The fourth proportional to 4,199.78, 6,299.43 and 1,277.85 is: 1,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.78 : 6,299.43 = 1,277.85 : x
  2. Step 2: Convert to fraction form
    4,199.78/6,299.43 = 1,277.85/x
  3. Step 3: Cross multiply
    4,199.78x = 6,299.43 × 1,277.85
  4. Step 4: Simplify right side
    4,199.78x = 8,049,726.63
  5. Step 5: Solve for x
    x = 8,049,726.63/4,199.78
  6. Step 6: Final answer
    x = 1,916.70

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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.