Home / 1,619.28-2,424.30-1,230.86

Finding the Fourth Proportional to 1,619.28, 2,424.30 and 1,230.86

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Solution

The fourth proportional to 1,619.28, 2,424.30 and 1,230.86 is: 1,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.28 : 2,424.30 = 1,230.86 : x
  2. Step 2: Convert to fraction form
    1,619.28/2,424.30 = 1,230.86/x
  3. Step 3: Cross multiply
    1,619.28x = 2,424.30 × 1,230.86
  4. Step 4: Simplify right side
    1,619.28x = 2,983,975.34
  5. Step 5: Solve for x
    x = 2,983,975.34/1,619.28
  6. Step 6: Final answer
    x = 1,842.78

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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.