Home / 3,308.20-4,962.31-1,228.21

Finding the Fourth Proportional to 3,308.20, 4,962.31 and 1,228.21

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Solution

The fourth proportional to 3,308.20, 4,962.31 and 1,228.21 is: 1,842.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.20 : 4,962.31 = 1,228.21 : x
  2. Step 2: Convert to fraction form
    3,308.20/4,962.31 = 1,228.21/x
  3. Step 3: Cross multiply
    3,308.20x = 4,962.31 × 1,228.21
  4. Step 4: Simplify right side
    3,308.20x = 6,094,743.29
  5. Step 5: Solve for x
    x = 6,094,743.29/3,308.20
  6. Step 6: Final answer
    x = 1,842.32

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1.5x scale

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.