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Finding the Fourth Proportional to 1,748.37, 2,622.56 and 637.87

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Solution

The fourth proportional to 1,748.37, 2,622.56 and 637.87 is: 956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.37 : 2,622.56 = 637.87 : x
  2. Step 2: Convert to fraction form
    1,748.37/2,622.56 = 637.87/x
  3. Step 3: Cross multiply
    1,748.37x = 2,622.56 × 637.87
  4. Step 4: Simplify right side
    1,748.37x = 1,672,842.60
  5. Step 5: Solve for x
    x = 1,672,842.60/1,748.37
  6. Step 6: Final answer
    x = 956.80

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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.