Home / 3,188.69-4,778.97-1,802.79

Finding the Fourth Proportional to 3,188.69, 4,778.97 and 1,802.79

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Solution

The fourth proportional to 3,188.69, 4,778.97 and 1,802.79 is: 2,701.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.69 : 4,778.97 = 1,802.79 : x
  2. Step 2: Convert to fraction form
    3,188.69/4,778.97 = 1,802.79/x
  3. Step 3: Cross multiply
    3,188.69x = 4,778.97 × 1,802.79
  4. Step 4: Simplify right side
    3,188.69x = 8,615,491.08
  5. Step 5: Solve for x
    x = 8,615,491.08/3,188.69
  6. Step 6: Final answer
    x = 2,701.89

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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.