Home / 3,651.34-5,474.51-1,311.30

Finding the Fourth Proportional to 3,651.34, 5,474.51 and 1,311.30

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Solution

The fourth proportional to 3,651.34, 5,474.51 and 1,311.30 is: 1,966.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.34 : 5,474.51 = 1,311.30 : x
  2. Step 2: Convert to fraction form
    3,651.34/5,474.51 = 1,311.30/x
  3. Step 3: Cross multiply
    3,651.34x = 5,474.51 × 1,311.30
  4. Step 4: Simplify right side
    3,651.34x = 7,178,724.96
  5. Step 5: Solve for x
    x = 7,178,724.96/3,651.34
  6. Step 6: Final answer
    x = 1,966.05

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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.