Home / 1,394.10-2,090.88-469.56

Finding the Fourth Proportional to 1,394.10, 2,090.88 and 469.56

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Solution

The fourth proportional to 1,394.10, 2,090.88 and 469.56 is: 704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.10 : 2,090.88 = 469.56 : x
  2. Step 2: Convert to fraction form
    1,394.10/2,090.88 = 469.56/x
  3. Step 3: Cross multiply
    1,394.10x = 2,090.88 × 469.56
  4. Step 4: Simplify right side
    1,394.10x = 981,793.61
  5. Step 5: Solve for x
    x = 981,793.61/1,394.10
  6. Step 6: Final answer
    x = 704.25

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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.