Home / 3,969.05-5,477.04-2,176.46

Finding the Fourth Proportional to 3,969.05, 5,477.04 and 2,176.46

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Solution

The fourth proportional to 3,969.05, 5,477.04 and 2,176.46 is: 3,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.05 : 5,477.04 = 2,176.46 : x
  2. Step 2: Convert to fraction form
    3,969.05/5,477.04 = 2,176.46/x
  3. Step 3: Cross multiply
    3,969.05x = 5,477.04 × 2,176.46
  4. Step 4: Simplify right side
    3,969.05x = 11,920,531.09
  5. Step 5: Solve for x
    x = 11,920,531.09/3,969.05
  6. Step 6: Final answer
    x = 3,003.37

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1.5x scale

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.