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Finding the Fourth Proportional to 1,184.31, 1,633.59 and 834.39

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Solution

The fourth proportional to 1,184.31, 1,633.59 and 834.39 is: 1,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.31 : 1,633.59 = 834.39 : x
  2. Step 2: Convert to fraction form
    1,184.31/1,633.59 = 834.39/x
  3. Step 3: Cross multiply
    1,184.31x = 1,633.59 × 834.39
  4. Step 4: Simplify right side
    1,184.31x = 1,363,051.16
  5. Step 5: Solve for x
    x = 1,363,051.16/1,184.31
  6. Step 6: Final answer
    x = 1,150.92

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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.