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Finding the Fourth Proportional to 3,604.80, 5,407.56 and 1,296

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Solution

The fourth proportional to 3,604.80, 5,407.56 and 1,296 is: 1,944.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.80 : 5,407.56 = 1,296 : x
  2. Step 2: Convert to fraction form
    3,604.80/5,407.56 = 1,296/x
  3. Step 3: Cross multiply
    3,604.80x = 5,407.56 × 1,296
  4. Step 4: Simplify right side
    3,604.80x = 7,008,197.76
  5. Step 5: Solve for x
    x = 7,008,197.76/3,604.80
  6. Step 6: Final answer
    x = 1,944.13

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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.