Home / 3,412.97-5,119.25-3,320.63

Finding the Fourth Proportional to 3,412.97, 5,119.25 and 3,320.63

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Solution

The fourth proportional to 3,412.97, 5,119.25 and 3,320.63 is: 4,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.97 : 5,119.25 = 3,320.63 : x
  2. Step 2: Convert to fraction form
    3,412.97/5,119.25 = 3,320.63/x
  3. Step 3: Cross multiply
    3,412.97x = 5,119.25 × 3,320.63
  4. Step 4: Simplify right side
    3,412.97x = 16,999,135.13
  5. Step 5: Solve for x
    x = 16,999,135.13/3,412.97
  6. Step 6: Final answer
    x = 4,980.75

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1.5x scale

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.