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Finding the Fourth Proportional to 1,157.37, 1,736.02 and 291.69

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Solution

The fourth proportional to 1,157.37, 1,736.02 and 291.69 is: 437.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.37 : 1,736.02 = 291.69 : x
  2. Step 2: Convert to fraction form
    1,157.37/1,736.02 = 291.69/x
  3. Step 3: Cross multiply
    1,157.37x = 1,736.02 × 291.69
  4. Step 4: Simplify right side
    1,157.37x = 506,379.67
  5. Step 5: Solve for x
    x = 506,379.67/1,157.37
  6. Step 6: Final answer
    x = 437.53

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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.