Home / 1,819.88-2,729.22-587.12

Finding the Fourth Proportional to 1,819.88, 2,729.22 and 587.12

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Solution

The fourth proportional to 1,819.88, 2,729.22 and 587.12 is: 880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.88 : 2,729.22 = 587.12 : x
  2. Step 2: Convert to fraction form
    1,819.88/2,729.22 = 587.12/x
  3. Step 3: Cross multiply
    1,819.88x = 2,729.22 × 587.12
  4. Step 4: Simplify right side
    1,819.88x = 1,602,379.65
  5. Step 5: Solve for x
    x = 1,602,379.65/1,819.88
  6. Step 6: Final answer
    x = 880.49

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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.