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Finding the Fourth Proportional to 1,323.62, 1,827 and 826.70

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Solution

The fourth proportional to 1,323.62, 1,827 and 826.70 is: 1,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.62 : 1,827 = 826.70 : x
  2. Step 2: Convert to fraction form
    1,323.62/1,827 = 826.70/x
  3. Step 3: Cross multiply
    1,323.62x = 1,827 × 826.70
  4. Step 4: Simplify right side
    1,323.62x = 1,510,380.90
  5. Step 5: Solve for x
    x = 1,510,380.90/1,323.62
  6. Step 6: Final answer
    x = 1,141.10

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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.