Home / 4,980.44-6,872.37-2,991.35

Finding the Fourth Proportional to 4,980.44, 6,872.37 and 2,991.35

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Solution

The fourth proportional to 4,980.44, 6,872.37 and 2,991.35 is: 4,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.44 : 6,872.37 = 2,991.35 : x
  2. Step 2: Convert to fraction form
    4,980.44/6,872.37 = 2,991.35/x
  3. Step 3: Cross multiply
    4,980.44x = 6,872.37 × 2,991.35
  4. Step 4: Simplify right side
    4,980.44x = 20,557,664.00
  5. Step 5: Solve for x
    x = 20,557,664.00/4,980.44
  6. Step 6: Final answer
    x = 4,127.68

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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.