Home / 3,148.68-4,723.20-1,200.72

Finding the Fourth Proportional to 3,148.68, 4,723.20 and 1,200.72

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Solution

The fourth proportional to 3,148.68, 4,723.20 and 1,200.72 is: 1,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.68 : 4,723.20 = 1,200.72 : x
  2. Step 2: Convert to fraction form
    3,148.68/4,723.20 = 1,200.72/x
  3. Step 3: Cross multiply
    3,148.68x = 4,723.20 × 1,200.72
  4. Step 4: Simplify right side
    3,148.68x = 5,671,240.70
  5. Step 5: Solve for x
    x = 5,671,240.70/3,148.68
  6. Step 6: Final answer
    x = 1,801.15

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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.