Home / 3,060.40-4,591.80-1,112.80

Finding the Fourth Proportional to 3,060.40, 4,591.80 and 1,112.80

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Solution

The fourth proportional to 3,060.40, 4,591.80 and 1,112.80 is: 1,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.40 : 4,591.80 = 1,112.80 : x
  2. Step 2: Convert to fraction form
    3,060.40/4,591.80 = 1,112.80/x
  3. Step 3: Cross multiply
    3,060.40x = 4,591.80 × 1,112.80
  4. Step 4: Simplify right side
    3,060.40x = 5,109,755.04
  5. Step 5: Solve for x
    x = 5,109,755.04/3,060.40
  6. Step 6: Final answer
    x = 1,669.64

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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.