Home / 3,187.14-4,782.60-1,240.80

Finding the Fourth Proportional to 3,187.14, 4,782.60 and 1,240.80

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Solution

The fourth proportional to 3,187.14, 4,782.60 and 1,240.80 is: 1,861.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.14 : 4,782.60 = 1,240.80 : x
  2. Step 2: Convert to fraction form
    3,187.14/4,782.60 = 1,240.80/x
  3. Step 3: Cross multiply
    3,187.14x = 4,782.60 × 1,240.80
  4. Step 4: Simplify right side
    3,187.14x = 5,934,250.08
  5. Step 5: Solve for x
    x = 5,934,250.08/3,187.14
  6. Step 6: Final answer
    x = 1,861.94

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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.