Home / 3,480.29-5,214.86-2,783.28

Finding the Fourth Proportional to 3,480.29, 5,214.86 and 2,783.28

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Solution

The fourth proportional to 3,480.29, 5,214.86 and 2,783.28 is: 4,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.29 : 5,214.86 = 2,783.28 : x
  2. Step 2: Convert to fraction form
    3,480.29/5,214.86 = 2,783.28/x
  3. Step 3: Cross multiply
    3,480.29x = 5,214.86 × 2,783.28
  4. Step 4: Simplify right side
    3,480.29x = 14,514,415.54
  5. Step 5: Solve for x
    x = 14,514,415.54/3,480.29
  6. Step 6: Final answer
    x = 4,170.46

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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.