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Finding the Fourth Proportional to 1,516.94, 2,093.44 and 853.82

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Solution

The fourth proportional to 1,516.94, 2,093.44 and 853.82 is: 1,178.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,516.94 : 2,093.44 = 853.82 : x
  2. Step 2: Convert to fraction form
    1,516.94/2,093.44 = 853.82/x
  3. Step 3: Cross multiply
    1,516.94x = 2,093.44 × 853.82
  4. Step 4: Simplify right side
    1,516.94x = 1,787,420.94
  5. Step 5: Solve for x
    x = 1,787,420.94/1,516.94
  6. Step 6: Final answer
    x = 1,178.31

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1.5x scale

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.