Home / 2,921.76-4,384.26-1,190.25

Finding the Fourth Proportional to 2,921.76, 4,384.26 and 1,190.25

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Solution

The fourth proportional to 2,921.76, 4,384.26 and 1,190.25 is: 1,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.76 : 4,384.26 = 1,190.25 : x
  2. Step 2: Convert to fraction form
    2,921.76/4,384.26 = 1,190.25/x
  3. Step 3: Cross multiply
    2,921.76x = 4,384.26 × 1,190.25
  4. Step 4: Simplify right side
    2,921.76x = 5,218,365.47
  5. Step 5: Solve for x
    x = 5,218,365.47/2,921.76
  6. Step 6: Final answer
    x = 1,786.03

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1.5x scale

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.