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Finding the Fourth Proportional to 1,354.23, 1,868.83 and 733.23

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Solution

The fourth proportional to 1,354.23, 1,868.83 and 733.23 is: 1,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.23 : 1,868.83 = 733.23 : x
  2. Step 2: Convert to fraction form
    1,354.23/1,868.83 = 733.23/x
  3. Step 3: Cross multiply
    1,354.23x = 1,868.83 × 733.23
  4. Step 4: Simplify right side
    1,354.23x = 1,370,280.39
  5. Step 5: Solve for x
    x = 1,370,280.39/1,354.23
  6. Step 6: Final answer
    x = 1,011.85

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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.