Home / 2,015.91-2,782.26-1,230.41

Finding the Fourth Proportional to 2,015.91, 2,782.26 and 1,230.41

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Solution

The fourth proportional to 2,015.91, 2,782.26 and 1,230.41 is: 1,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.91 : 2,782.26 = 1,230.41 : x
  2. Step 2: Convert to fraction form
    2,015.91/2,782.26 = 1,230.41/x
  3. Step 3: Cross multiply
    2,015.91x = 2,782.26 × 1,230.41
  4. Step 4: Simplify right side
    2,015.91x = 3,423,306.62
  5. Step 5: Solve for x
    x = 3,423,306.62/2,015.91
  6. Step 6: Final answer
    x = 1,698.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.