Home / 3,972.30-5,956.92-1,890.70

Finding the Fourth Proportional to 3,972.30, 5,956.92 and 1,890.70

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Solution

The fourth proportional to 3,972.30, 5,956.92 and 1,890.70 is: 2,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.30 : 5,956.92 = 1,890.70 : x
  2. Step 2: Convert to fraction form
    3,972.30/5,956.92 = 1,890.70/x
  3. Step 3: Cross multiply
    3,972.30x = 5,956.92 × 1,890.70
  4. Step 4: Simplify right side
    3,972.30x = 11,262,748.64
  5. Step 5: Solve for x
    x = 11,262,748.64/3,972.30
  6. Step 6: Final answer
    x = 2,835.32

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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.