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Finding the Fourth Proportional to 1,704.96, 2,355.24 and 1,317

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Solution

The fourth proportional to 1,704.96, 2,355.24 and 1,317 is: 1,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.96 : 2,355.24 = 1,317 : x
  2. Step 2: Convert to fraction form
    1,704.96/2,355.24 = 1,317/x
  3. Step 3: Cross multiply
    1,704.96x = 2,355.24 × 1,317
  4. Step 4: Simplify right side
    1,704.96x = 3,101,851.08
  5. Step 5: Solve for x
    x = 3,101,851.08/1,704.96
  6. Step 6: Final answer
    x = 1,819.31

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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.