Home / 2,065.10-3,090.45-1,445.90

Finding the Fourth Proportional to 2,065.10, 3,090.45 and 1,445.90

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Solution

The fourth proportional to 2,065.10, 3,090.45 and 1,445.90 is: 2,163.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.10 : 3,090.45 = 1,445.90 : x
  2. Step 2: Convert to fraction form
    2,065.10/3,090.45 = 1,445.90/x
  3. Step 3: Cross multiply
    2,065.10x = 3,090.45 × 1,445.90
  4. Step 4: Simplify right side
    2,065.10x = 4,468,481.66
  5. Step 5: Solve for x
    x = 4,468,481.66/2,065.10
  6. Step 6: Final answer
    x = 2,163.81

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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.