Home / 2,529.28-3,789.84-1,662

Finding the Fourth Proportional to 2,529.28, 3,789.84 and 1,662

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Solution

The fourth proportional to 2,529.28, 3,789.84 and 1,662 is: 2,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.28 : 3,789.84 = 1,662 : x
  2. Step 2: Convert to fraction form
    2,529.28/3,789.84 = 1,662/x
  3. Step 3: Cross multiply
    2,529.28x = 3,789.84 × 1,662
  4. Step 4: Simplify right side
    2,529.28x = 6,298,714.08
  5. Step 5: Solve for x
    x = 6,298,714.08/2,529.28
  6. Step 6: Final answer
    x = 2,490.32

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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.