Home / 3,801.20-5,245.74-2,308.88

Finding the Fourth Proportional to 3,801.20, 5,245.74 and 2,308.88

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Solution

The fourth proportional to 3,801.20, 5,245.74 and 2,308.88 is: 3,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,801.20 : 5,245.74 = 2,308.88 : x
  2. Step 2: Convert to fraction form
    3,801.20/5,245.74 = 2,308.88/x
  3. Step 3: Cross multiply
    3,801.20x = 5,245.74 × 2,308.88
  4. Step 4: Simplify right side
    3,801.20x = 12,111,784.17
  5. Step 5: Solve for x
    x = 12,111,784.17/3,801.20
  6. Step 6: Final answer
    x = 3,186.31

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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.