Home / 7,321.05-10,987.25-2,942.19

Finding the Fourth Proportional to 7,321.05, 10,987.25 and 2,942.19

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Solution

The fourth proportional to 7,321.05, 10,987.25 and 2,942.19 is: 4,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.05 : 10,987.25 = 2,942.19 : x
  2. Step 2: Convert to fraction form
    7,321.05/10,987.25 = 2,942.19/x
  3. Step 3: Cross multiply
    7,321.05x = 10,987.25 × 2,942.19
  4. Step 4: Simplify right side
    7,321.05x = 32,326,562.37
  5. Step 5: Solve for x
    x = 32,326,562.37/7,321.05
  6. Step 6: Final answer
    x = 4,415.56

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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.