Home / 2,778.48-4,166.19-1,901.97

Finding the Fourth Proportional to 2,778.48, 4,166.19 and 1,901.97

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Solution

The fourth proportional to 2,778.48, 4,166.19 and 1,901.97 is: 2,851.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.48 : 4,166.19 = 1,901.97 : x
  2. Step 2: Convert to fraction form
    2,778.48/4,166.19 = 1,901.97/x
  3. Step 3: Cross multiply
    2,778.48x = 4,166.19 × 1,901.97
  4. Step 4: Simplify right side
    2,778.48x = 7,923,968.39
  5. Step 5: Solve for x
    x = 7,923,968.39/2,778.48
  6. Step 6: Final answer
    x = 2,851.91

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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.