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Finding the Fourth Proportional to 3,146.94, 4,342.95 and 1,749.66

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Solution

The fourth proportional to 3,146.94, 4,342.95 and 1,749.66 is: 2,414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.94 : 4,342.95 = 1,749.66 : x
  2. Step 2: Convert to fraction form
    3,146.94/4,342.95 = 1,749.66/x
  3. Step 3: Cross multiply
    3,146.94x = 4,342.95 × 1,749.66
  4. Step 4: Simplify right side
    3,146.94x = 7,598,685.90
  5. Step 5: Solve for x
    x = 7,598,685.90/3,146.94
  6. Step 6: Final answer
    x = 2,414.63

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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.