Home / 3,652.45-5,475.40-1,311.91

Finding the Fourth Proportional to 3,652.45, 5,475.40 and 1,311.91

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Solution

The fourth proportional to 3,652.45, 5,475.40 and 1,311.91 is: 1,966.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.45 : 5,475.40 = 1,311.91 : x
  2. Step 2: Convert to fraction form
    3,652.45/5,475.40 = 1,311.91/x
  3. Step 3: Cross multiply
    3,652.45x = 5,475.40 × 1,311.91
  4. Step 4: Simplify right side
    3,652.45x = 7,183,215.05
  5. Step 5: Solve for x
    x = 7,183,215.05/3,652.45
  6. Step 6: Final answer
    x = 1,966.69

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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.