Home / 7,090.75-10,629.08-3,388.66

Finding the Fourth Proportional to 7,090.75, 10,629.08 and 3,388.66

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Solution

The fourth proportional to 7,090.75, 10,629.08 and 3,388.66 is: 5,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.75 : 10,629.08 = 3,388.66 : x
  2. Step 2: Convert to fraction form
    7,090.75/10,629.08 = 3,388.66/x
  3. Step 3: Cross multiply
    7,090.75x = 10,629.08 × 3,388.66
  4. Step 4: Simplify right side
    7,090.75x = 36,018,338.23
  5. Step 5: Solve for x
    x = 36,018,338.23/7,090.75
  6. Step 6: Final answer
    x = 5,079.62

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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.