Home / 1,716.65-2,574.97-986.43

Finding the Fourth Proportional to 1,716.65, 2,574.97 and 986.43

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Solution

The fourth proportional to 1,716.65, 2,574.97 and 986.43 is: 1,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.65 : 2,574.97 = 986.43 : x
  2. Step 2: Convert to fraction form
    1,716.65/2,574.97 = 986.43/x
  3. Step 3: Cross multiply
    1,716.65x = 2,574.97 × 986.43
  4. Step 4: Simplify right side
    1,716.65x = 2,540,022.72
  5. Step 5: Solve for x
    x = 2,540,022.72/1,716.65
  6. Step 6: Final answer
    x = 1,479.64

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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.