Home / 1,716.20-2,574.41-620.57

Finding the Fourth Proportional to 1,716.20, 2,574.41 and 620.57

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Solution

The fourth proportional to 1,716.20, 2,574.41 and 620.57 is: 930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.20 : 2,574.41 = 620.57 : x
  2. Step 2: Convert to fraction form
    1,716.20/2,574.41 = 620.57/x
  3. Step 3: Cross multiply
    1,716.20x = 2,574.41 × 620.57
  4. Step 4: Simplify right side
    1,716.20x = 1,597,585.64
  5. Step 5: Solve for x
    x = 1,597,585.64/1,716.20
  6. Step 6: Final answer
    x = 930.89

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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.