Home / 1,748.44-2,619.78-1,287.16

Finding the Fourth Proportional to 1,748.44, 2,619.78 and 1,287.16

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Solution

The fourth proportional to 1,748.44, 2,619.78 and 1,287.16 is: 1,928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.44 : 2,619.78 = 1,287.16 : x
  2. Step 2: Convert to fraction form
    1,748.44/2,619.78 = 1,287.16/x
  3. Step 3: Cross multiply
    1,748.44x = 2,619.78 × 1,287.16
  4. Step 4: Simplify right side
    1,748.44x = 3,372,076.02
  5. Step 5: Solve for x
    x = 3,372,076.02/1,748.44
  6. Step 6: Final answer
    x = 1,928.62

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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.