Home / 4,980.97-6,873.76-2,991.56

Finding the Fourth Proportional to 4,980.97, 6,873.76 and 2,991.56

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Solution

The fourth proportional to 4,980.97, 6,873.76 and 2,991.56 is: 4,128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.97 : 6,873.76 = 2,991.56 : x
  2. Step 2: Convert to fraction form
    4,980.97/6,873.76 = 2,991.56/x
  3. Step 3: Cross multiply
    4,980.97x = 6,873.76 × 2,991.56
  4. Step 4: Simplify right side
    4,980.97x = 20,563,233.32
  5. Step 5: Solve for x
    x = 20,563,233.32/4,980.97
  6. Step 6: Final answer
    x = 4,128.36

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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.