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Finding the Fourth Proportional to 1,156.67, 1,596.17 and 659.26

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Solution

The fourth proportional to 1,156.67, 1,596.17 and 659.26 is: 909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.67 : 1,596.17 = 659.26 : x
  2. Step 2: Convert to fraction form
    1,156.67/1,596.17 = 659.26/x
  3. Step 3: Cross multiply
    1,156.67x = 1,596.17 × 659.26
  4. Step 4: Simplify right side
    1,156.67x = 1,052,291.03
  5. Step 5: Solve for x
    x = 1,052,291.03/1,156.67
  6. Step 6: Final answer
    x = 909.76

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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.