Home / 3,281.10-4,920.36-1,200.48

Finding the Fourth Proportional to 3,281.10, 4,920.36 and 1,200.48

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Solution

The fourth proportional to 3,281.10, 4,920.36 and 1,200.48 is: 1,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.10 : 4,920.36 = 1,200.48 : x
  2. Step 2: Convert to fraction form
    3,281.10/4,920.36 = 1,200.48/x
  3. Step 3: Cross multiply
    3,281.10x = 4,920.36 × 1,200.48
  4. Step 4: Simplify right side
    3,281.10x = 5,906,793.77
  5. Step 5: Solve for x
    x = 5,906,793.77/3,281.10
  6. Step 6: Final answer
    x = 1,800.25

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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.