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Finding the Fourth Proportional to 3,541.10, 5,311.58 and 908.58

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Solution

The fourth proportional to 3,541.10, 5,311.58 and 908.58 is: 1,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,541.10 : 5,311.58 = 908.58 : x
  2. Step 2: Convert to fraction form
    3,541.10/5,311.58 = 908.58/x
  3. Step 3: Cross multiply
    3,541.10x = 5,311.58 × 908.58
  4. Step 4: Simplify right side
    3,541.10x = 4,825,995.36
  5. Step 5: Solve for x
    x = 4,825,995.36/3,541.10
  6. Step 6: Final answer
    x = 1,362.85

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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.