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Finding the Fourth Proportional to 1,092.70, 1,507.81 and 650.52

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Solution

The fourth proportional to 1,092.70, 1,507.81 and 650.52 is: 897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.70 : 1,507.81 = 650.52 : x
  2. Step 2: Convert to fraction form
    1,092.70/1,507.81 = 650.52/x
  3. Step 3: Cross multiply
    1,092.70x = 1,507.81 × 650.52
  4. Step 4: Simplify right side
    1,092.70x = 980,849.77
  5. Step 5: Solve for x
    x = 980,849.77/1,092.70
  6. Step 6: Final answer
    x = 897.64

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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.