Home / 2,778.00-3,833.65-1,783.28

Finding the Fourth Proportional to 2,778.00, 3,833.65 and 1,783.28

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Solution

The fourth proportional to 2,778.00, 3,833.65 and 1,783.28 is: 2,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.00 : 3,833.65 = 1,783.28 : x
  2. Step 2: Convert to fraction form
    2,778.00/3,833.65 = 1,783.28/x
  3. Step 3: Cross multiply
    2,778.00x = 3,833.65 × 1,783.28
  4. Step 4: Simplify right side
    2,778.00x = 6,836,460.74
  5. Step 5: Solve for x
    x = 6,836,460.74/2,778.00
  6. Step 6: Final answer
    x = 2,460.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.