Home / 4,112.47-6,170.07-1,920.00

Finding the Fourth Proportional to 4,112.47, 6,170.07 and 1,920.00

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Solution

The fourth proportional to 4,112.47, 6,170.07 and 1,920.00 is: 2,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.47 : 6,170.07 = 1,920.00 : x
  2. Step 2: Convert to fraction form
    4,112.47/6,170.07 = 1,920.00/x
  3. Step 3: Cross multiply
    4,112.47x = 6,170.07 × 1,920.00
  4. Step 4: Simplify right side
    4,112.47x = 11,846,564.74
  5. Step 5: Solve for x
    x = 11,846,564.74/4,112.47
  6. Step 6: Final answer
    x = 2,880.64

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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.