Home / 1,897.14-2,845.90-580.90

Finding the Fourth Proportional to 1,897.14, 2,845.90 and 580.90

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Solution

The fourth proportional to 1,897.14, 2,845.90 and 580.90 is: 871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.14 : 2,845.90 = 580.90 : x
  2. Step 2: Convert to fraction form
    1,897.14/2,845.90 = 580.90/x
  3. Step 3: Cross multiply
    1,897.14x = 2,845.90 × 580.90
  4. Step 4: Simplify right side
    1,897.14x = 1,653,183.31
  5. Step 5: Solve for x
    x = 1,653,183.31/1,897.14
  6. Step 6: Final answer
    x = 871.41

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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.