Home / 1,394.27-2,090.87-469.58

Finding the Fourth Proportional to 1,394.27, 2,090.87 and 469.58

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Solution

The fourth proportional to 1,394.27, 2,090.87 and 469.58 is: 704.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.27 : 2,090.87 = 469.58 : x
  2. Step 2: Convert to fraction form
    1,394.27/2,090.87 = 469.58/x
  3. Step 3: Cross multiply
    1,394.27x = 2,090.87 × 469.58
  4. Step 4: Simplify right side
    1,394.27x = 981,825.51
  5. Step 5: Solve for x
    x = 981,825.51/1,394.27
  6. Step 6: Final answer
    x = 704.19

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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.