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Finding the Fourth Proportional to 1,133.14, 1,698.17 and 801.50

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Solution

The fourth proportional to 1,133.14, 1,698.17 and 801.50 is: 1,201.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.14 : 1,698.17 = 801.50 : x
  2. Step 2: Convert to fraction form
    1,133.14/1,698.17 = 801.50/x
  3. Step 3: Cross multiply
    1,133.14x = 1,698.17 × 801.50
  4. Step 4: Simplify right side
    1,133.14x = 1,361,086.57
  5. Step 5: Solve for x
    x = 1,361,086.57/1,133.14
  6. Step 6: Final answer
    x = 1,201.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.