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Finding the Fourth Proportional to 1,157.26, 1,596.51 and 659.83

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Solution

The fourth proportional to 1,157.26, 1,596.51 and 659.83 is: 910.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.26 : 1,596.51 = 659.83 : x
  2. Step 2: Convert to fraction form
    1,157.26/1,596.51 = 659.83/x
  3. Step 3: Cross multiply
    1,157.26x = 1,596.51 × 659.83
  4. Step 4: Simplify right side
    1,157.26x = 1,053,425.19
  5. Step 5: Solve for x
    x = 1,053,425.19/1,157.26
  6. Step 6: Final answer
    x = 910.28

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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.