Home / 4,192.40-6,288.39-1,270.61

Finding the Fourth Proportional to 4,192.40, 6,288.39 and 1,270.61

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Solution

The fourth proportional to 4,192.40, 6,288.39 and 1,270.61 is: 1,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.40 : 6,288.39 = 1,270.61 : x
  2. Step 2: Convert to fraction form
    4,192.40/6,288.39 = 1,270.61/x
  3. Step 3: Cross multiply
    4,192.40x = 6,288.39 × 1,270.61
  4. Step 4: Simplify right side
    4,192.40x = 7,990,059.78
  5. Step 5: Solve for x
    x = 7,990,059.78/4,192.40
  6. Step 6: Final answer
    x = 1,905.85

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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.