Home / 3,405.20-5,103.54-1,845.20

Finding the Fourth Proportional to 3,405.20, 5,103.54 and 1,845.20

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Solution

The fourth proportional to 3,405.20, 5,103.54 and 1,845.20 is: 2,765.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.20 : 5,103.54 = 1,845.20 : x
  2. Step 2: Convert to fraction form
    3,405.20/5,103.54 = 1,845.20/x
  3. Step 3: Cross multiply
    3,405.20x = 5,103.54 × 1,845.20
  4. Step 4: Simplify right side
    3,405.20x = 9,417,052.01
  5. Step 5: Solve for x
    x = 9,417,052.01/3,405.20
  6. Step 6: Final answer
    x = 2,765.49

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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.