Home / 2,619.43-3,929.25-1,303.81

Finding the Fourth Proportional to 2,619.43, 3,929.25 and 1,303.81

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Solution

The fourth proportional to 2,619.43, 3,929.25 and 1,303.81 is: 1,955.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.43 : 3,929.25 = 1,303.81 : x
  2. Step 2: Convert to fraction form
    2,619.43/3,929.25 = 1,303.81/x
  3. Step 3: Cross multiply
    2,619.43x = 3,929.25 × 1,303.81
  4. Step 4: Simplify right side
    2,619.43x = 5,122,995.44
  5. Step 5: Solve for x
    x = 5,122,995.44/2,619.43
  6. Step 6: Final answer
    x = 1,955.77

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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.