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Finding the Fourth Proportional to 2,604.56, 3,906.85 and 1,065.56

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Solution

The fourth proportional to 2,604.56, 3,906.85 and 1,065.56 is: 1,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,604.56 : 3,906.85 = 1,065.56 : x
  2. Step 2: Convert to fraction form
    2,604.56/3,906.85 = 1,065.56/x
  3. Step 3: Cross multiply
    2,604.56x = 3,906.85 × 1,065.56
  4. Step 4: Simplify right side
    2,604.56x = 4,162,963.55
  5. Step 5: Solve for x
    x = 4,162,963.55/2,604.56
  6. Step 6: Final answer
    x = 1,598.34

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1.5x scale

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.