Home / 3,148.62-4,342.82-1,954.28

Finding the Fourth Proportional to 3,148.62, 4,342.82 and 1,954.28

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Solution

The fourth proportional to 3,148.62, 4,342.82 and 1,954.28 is: 2,695.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.62 : 4,342.82 = 1,954.28 : x
  2. Step 2: Convert to fraction form
    3,148.62/4,342.82 = 1,954.28/x
  3. Step 3: Cross multiply
    3,148.62x = 4,342.82 × 1,954.28
  4. Step 4: Simplify right side
    3,148.62x = 8,487,087.36
  5. Step 5: Solve for x
    x = 8,487,087.36/3,148.62
  6. Step 6: Final answer
    x = 2,695.50

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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.