Home / 3,891.36-5,367.16-2,994.96

Finding the Fourth Proportional to 3,891.36, 5,367.16 and 2,994.96

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Solution

The fourth proportional to 3,891.36, 5,367.16 and 2,994.96 is: 4,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.36 : 5,367.16 = 2,994.96 : x
  2. Step 2: Convert to fraction form
    3,891.36/5,367.16 = 2,994.96/x
  3. Step 3: Cross multiply
    3,891.36x = 5,367.16 × 2,994.96
  4. Step 4: Simplify right side
    3,891.36x = 16,074,429.51
  5. Step 5: Solve for x
    x = 16,074,429.51/3,891.36
  6. Step 6: Final answer
    x = 4,130.80

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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.