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Finding the Fourth Proportional to 1,716.72, 2,369.10 and 960.47

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Solution

The fourth proportional to 1,716.72, 2,369.10 and 960.47 is: 1,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.72 : 2,369.10 = 960.47 : x
  2. Step 2: Convert to fraction form
    1,716.72/2,369.10 = 960.47/x
  3. Step 3: Cross multiply
    1,716.72x = 2,369.10 × 960.47
  4. Step 4: Simplify right side
    1,716.72x = 2,275,449.48
  5. Step 5: Solve for x
    x = 2,275,449.48/1,716.72
  6. Step 6: Final answer
    x = 1,325.46

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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.