Home / 5,208.40-7,187.56-2,850.58

Finding the Fourth Proportional to 5,208.40, 7,187.56 and 2,850.58

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Solution

The fourth proportional to 5,208.40, 7,187.56 and 2,850.58 is: 3,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208.40 : 7,187.56 = 2,850.58 : x
  2. Step 2: Convert to fraction form
    5,208.40/7,187.56 = 2,850.58/x
  3. Step 3: Cross multiply
    5,208.40x = 7,187.56 × 2,850.58
  4. Step 4: Simplify right side
    5,208.40x = 20,488,714.78
  5. Step 5: Solve for x
    x = 20,488,714.78/5,208.40
  6. Step 6: Final answer
    x = 3,933.78

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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.