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Finding the Fourth Proportional to 1,756.56, 2,636.14 and 832.12

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Solution

The fourth proportional to 1,756.56, 2,636.14 and 832.12 is: 1,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.56 : 2,636.14 = 832.12 : x
  2. Step 2: Convert to fraction form
    1,756.56/2,636.14 = 832.12/x
  3. Step 3: Cross multiply
    1,756.56x = 2,636.14 × 832.12
  4. Step 4: Simplify right side
    1,756.56x = 2,193,586.90
  5. Step 5: Solve for x
    x = 2,193,586.90/1,756.56
  6. Step 6: Final answer
    x = 1,248.80

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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.