Home / 2,010.24-3,015.42-1,390.56

Finding the Fourth Proportional to 2,010.24, 3,015.42 and 1,390.56

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Solution

The fourth proportional to 2,010.24, 3,015.42 and 1,390.56 is: 2,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.24 : 3,015.42 = 1,390.56 : x
  2. Step 2: Convert to fraction form
    2,010.24/3,015.42 = 1,390.56/x
  3. Step 3: Cross multiply
    2,010.24x = 3,015.42 × 1,390.56
  4. Step 4: Simplify right side
    2,010.24x = 4,193,122.44
  5. Step 5: Solve for x
    x = 4,193,122.44/2,010.24
  6. Step 6: Final answer
    x = 2,085.88

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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.