Home / 1,394.25-2,090.85-469.56

Finding the Fourth Proportional to 1,394.25, 2,090.85 and 469.56

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Solution

The fourth proportional to 1,394.25, 2,090.85 and 469.56 is: 704.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.25 : 2,090.85 = 469.56 : x
  2. Step 2: Convert to fraction form
    1,394.25/2,090.85 = 469.56/x
  3. Step 3: Cross multiply
    1,394.25x = 2,090.85 × 469.56
  4. Step 4: Simplify right side
    1,394.25x = 981,779.53
  5. Step 5: Solve for x
    x = 981,779.53/1,394.25
  6. Step 6: Final answer
    x = 704.16

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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.