Home / 3,969.09-5,464.87-3,370.32

Finding the Fourth Proportional to 3,969.09, 5,464.87 and 3,370.32

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Solution

The fourth proportional to 3,969.09, 5,464.87 and 3,370.32 is: 4,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.09 : 5,464.87 = 3,370.32 : x
  2. Step 2: Convert to fraction form
    3,969.09/5,464.87 = 3,370.32/x
  3. Step 3: Cross multiply
    3,969.09x = 5,464.87 × 3,370.32
  4. Step 4: Simplify right side
    3,969.09x = 18,418,352.23
  5. Step 5: Solve for x
    x = 18,418,352.23/3,969.09
  6. Step 6: Final answer
    x = 4,640.45

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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.