Home / 1,594.20-2,391.14-439.88

Finding the Fourth Proportional to 1,594.20, 2,391.14 and 439.88

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Solution

The fourth proportional to 1,594.20, 2,391.14 and 439.88 is: 659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594.20 : 2,391.14 = 439.88 : x
  2. Step 2: Convert to fraction form
    1,594.20/2,391.14 = 439.88/x
  3. Step 3: Cross multiply
    1,594.20x = 2,391.14 × 439.88
  4. Step 4: Simplify right side
    1,594.20x = 1,051,814.66
  5. Step 5: Solve for x
    x = 1,051,814.66/1,594.20
  6. Step 6: Final answer
    x = 659.78

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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.