Home / 3,148.92-4,343.78-1,953.49

Finding the Fourth Proportional to 3,148.92, 4,343.78 and 1,953.49

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Solution

The fourth proportional to 3,148.92, 4,343.78 and 1,953.49 is: 2,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.92 : 4,343.78 = 1,953.49 : x
  2. Step 2: Convert to fraction form
    3,148.92/4,343.78 = 1,953.49/x
  3. Step 3: Cross multiply
    3,148.92x = 4,343.78 × 1,953.49
  4. Step 4: Simplify right side
    3,148.92x = 8,485,530.79
  5. Step 5: Solve for x
    x = 8,485,530.79/3,148.92
  6. Step 6: Final answer
    x = 2,694.74

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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.