Home / 3,995.46-5,508.81-3,109.32

Finding the Fourth Proportional to 3,995.46, 5,508.81 and 3,109.32

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Solution

The fourth proportional to 3,995.46, 5,508.81 and 3,109.32 is: 4,287.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.46 : 5,508.81 = 3,109.32 : x
  2. Step 2: Convert to fraction form
    3,995.46/5,508.81 = 3,109.32/x
  3. Step 3: Cross multiply
    3,995.46x = 5,508.81 × 3,109.32
  4. Step 4: Simplify right side
    3,995.46x = 17,128,653.11
  5. Step 5: Solve for x
    x = 17,128,653.11/3,995.46
  6. Step 6: Final answer
    x = 4,287.03

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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.