Home / 2,619.64-3,614.94-1,440.71

Finding the Fourth Proportional to 2,619.64, 3,614.94 and 1,440.71

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Solution

The fourth proportional to 2,619.64, 3,614.94 and 1,440.71 is: 1,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.64 : 3,614.94 = 1,440.71 : x
  2. Step 2: Convert to fraction form
    2,619.64/3,614.94 = 1,440.71/x
  3. Step 3: Cross multiply
    2,619.64x = 3,614.94 × 1,440.71
  4. Step 4: Simplify right side
    2,619.64x = 5,208,062.13
  5. Step 5: Solve for x
    x = 5,208,062.13/2,619.64
  6. Step 6: Final answer
    x = 1,988.09

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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.