Home / 2,619.40-3,614.88-1,440.51

Finding the Fourth Proportional to 2,619.40, 3,614.88 and 1,440.51

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Solution

The fourth proportional to 2,619.40, 3,614.88 and 1,440.51 is: 1,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.40 : 3,614.88 = 1,440.51 : x
  2. Step 2: Convert to fraction form
    2,619.40/3,614.88 = 1,440.51/x
  3. Step 3: Cross multiply
    2,619.40x = 3,614.88 × 1,440.51
  4. Step 4: Simplify right side
    2,619.40x = 5,207,276.19
  5. Step 5: Solve for x
    x = 5,207,276.19/2,619.40
  6. Step 6: Final answer
    x = 1,987.97

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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.