Home / 1,396.66-2,090.13-1,179.58

Finding the Fourth Proportional to 1,396.66, 2,090.13 and 1,179.58

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Solution

The fourth proportional to 1,396.66, 2,090.13 and 1,179.58 is: 1,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.66 : 2,090.13 = 1,179.58 : x
  2. Step 2: Convert to fraction form
    1,396.66/2,090.13 = 1,179.58/x
  3. Step 3: Cross multiply
    1,396.66x = 2,090.13 × 1,179.58
  4. Step 4: Simplify right side
    1,396.66x = 2,465,475.55
  5. Step 5: Solve for x
    x = 2,465,475.55/1,396.66
  6. Step 6: Final answer
    x = 1,765.27

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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.