Home / 4,190.76-6,284.67-1,228.39

Finding the Fourth Proportional to 4,190.76, 6,284.67 and 1,228.39

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Solution

The fourth proportional to 4,190.76, 6,284.67 and 1,228.39 is: 1,842.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.76 : 6,284.67 = 1,228.39 : x
  2. Step 2: Convert to fraction form
    4,190.76/6,284.67 = 1,228.39/x
  3. Step 3: Cross multiply
    4,190.76x = 6,284.67 × 1,228.39
  4. Step 4: Simplify right side
    4,190.76x = 7,720,025.78
  5. Step 5: Solve for x
    x = 7,720,025.78/4,190.76
  6. Step 6: Final answer
    x = 1,842.15

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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.