Home / 3,969.15-5,477.16-2,200.69

Finding the Fourth Proportional to 3,969.15, 5,477.16 and 2,200.69

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Solution

The fourth proportional to 3,969.15, 5,477.16 and 2,200.69 is: 3,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.15 : 5,477.16 = 2,200.69 : x
  2. Step 2: Convert to fraction form
    3,969.15/5,477.16 = 2,200.69/x
  3. Step 3: Cross multiply
    3,969.15x = 5,477.16 × 2,200.69
  4. Step 4: Simplify right side
    3,969.15x = 12,053,531.24
  5. Step 5: Solve for x
    x = 12,053,531.24/3,969.15
  6. Step 6: Final answer
    x = 3,036.80

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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.