Home / 2,976.96-4,112.28-2,416.80

Finding the Fourth Proportional to 2,976.96, 4,112.28 and 2,416.80

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Solution

The fourth proportional to 2,976.96, 4,112.28 and 2,416.80 is: 3,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.96 : 4,112.28 = 2,416.80 : x
  2. Step 2: Convert to fraction form
    2,976.96/4,112.28 = 2,416.80/x
  3. Step 3: Cross multiply
    2,976.96x = 4,112.28 × 2,416.80
  4. Step 4: Simplify right side
    2,976.96x = 9,938,558.30
  5. Step 5: Solve for x
    x = 9,938,558.30/2,976.96
  6. Step 6: Final answer
    x = 3,338.49

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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.