Home / 4,200.87-6,299.12-1,238.92

Finding the Fourth Proportional to 4,200.87, 6,299.12 and 1,238.92

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Solution

The fourth proportional to 4,200.87, 6,299.12 and 1,238.92 is: 1,857.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.87 : 6,299.12 = 1,238.92 : x
  2. Step 2: Convert to fraction form
    4,200.87/6,299.12 = 1,238.92/x
  3. Step 3: Cross multiply
    4,200.87x = 6,299.12 × 1,238.92
  4. Step 4: Simplify right side
    4,200.87x = 7,804,099.56
  5. Step 5: Solve for x
    x = 7,804,099.56/4,200.87
  6. Step 6: Final answer
    x = 1,857.74

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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.