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Finding the Fourth Proportional to 1,323.85, 1,826.89 and 734.38

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Solution

The fourth proportional to 1,323.85, 1,826.89 and 734.38 is: 1,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.85 : 1,826.89 = 734.38 : x
  2. Step 2: Convert to fraction form
    1,323.85/1,826.89 = 734.38/x
  3. Step 3: Cross multiply
    1,323.85x = 1,826.89 × 734.38
  4. Step 4: Simplify right side
    1,323.85x = 1,341,631.48
  5. Step 5: Solve for x
    x = 1,341,631.48/1,323.85
  6. Step 6: Final answer
    x = 1,013.43

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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.