Home / 3,188.36-4,784.34-1,240.76

Finding the Fourth Proportional to 3,188.36, 4,784.34 and 1,240.76

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Solution

The fourth proportional to 3,188.36, 4,784.34 and 1,240.76 is: 1,861.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.36 : 4,784.34 = 1,240.76 : x
  2. Step 2: Convert to fraction form
    3,188.36/4,784.34 = 1,240.76/x
  3. Step 3: Cross multiply
    3,188.36x = 4,784.34 × 1,240.76
  4. Step 4: Simplify right side
    3,188.36x = 5,936,217.70
  5. Step 5: Solve for x
    x = 5,936,217.70/3,188.36
  6. Step 6: Final answer
    x = 1,861.84

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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.