Home / 2,619.30-3,614.85-1,440.54

Finding the Fourth Proportional to 2,619.30, 3,614.85 and 1,440.54

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Solution

The fourth proportional to 2,619.30, 3,614.85 and 1,440.54 is: 1,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.30 : 3,614.85 = 1,440.54 : x
  2. Step 2: Convert to fraction form
    2,619.30/3,614.85 = 1,440.54/x
  3. Step 3: Cross multiply
    2,619.30x = 3,614.85 × 1,440.54
  4. Step 4: Simplify right side
    2,619.30x = 5,207,336.02
  5. Step 5: Solve for x
    x = 5,207,336.02/2,619.30
  6. Step 6: Final answer
    x = 1,988.06

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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.