Home / 3,037.92-4,192.20-1,918.50

Finding the Fourth Proportional to 3,037.92, 4,192.20 and 1,918.50

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Solution

The fourth proportional to 3,037.92, 4,192.20 and 1,918.50 is: 2,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,037.92 : 4,192.20 = 1,918.50 : x
  2. Step 2: Convert to fraction form
    3,037.92/4,192.20 = 1,918.50/x
  3. Step 3: Cross multiply
    3,037.92x = 4,192.20 × 1,918.50
  4. Step 4: Simplify right side
    3,037.92x = 8,042,735.70
  5. Step 5: Solve for x
    x = 8,042,735.70/3,037.92
  6. Step 6: Final answer
    x = 2,647.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.