Home / 3,146.88-4,342.72-1,749.60

Finding the Fourth Proportional to 3,146.88, 4,342.72 and 1,749.60

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Solution

The fourth proportional to 3,146.88, 4,342.72 and 1,749.60 is: 2,414.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.88 : 4,342.72 = 1,749.60 : x
  2. Step 2: Convert to fraction form
    3,146.88/4,342.72 = 1,749.60/x
  3. Step 3: Cross multiply
    3,146.88x = 4,342.72 × 1,749.60
  4. Step 4: Simplify right side
    3,146.88x = 7,598,022.91
  5. Step 5: Solve for x
    x = 7,598,022.91/3,146.88
  6. Step 6: Final answer
    x = 2,414.46

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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.