Home / 4,815.30-7,218.09-2,619.48

Finding the Fourth Proportional to 4,815.30, 7,218.09 and 2,619.48

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Solution

The fourth proportional to 4,815.30, 7,218.09 and 2,619.48 is: 3,926.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.30 : 7,218.09 = 2,619.48 : x
  2. Step 2: Convert to fraction form
    4,815.30/7,218.09 = 2,619.48/x
  3. Step 3: Cross multiply
    4,815.30x = 7,218.09 × 2,619.48
  4. Step 4: Simplify right side
    4,815.30x = 18,907,642.39
  5. Step 5: Solve for x
    x = 18,907,642.39/4,815.30
  6. Step 6: Final answer
    x = 3,926.58

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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.