Home / 1,660.22-2,490.30-1,401.88

Finding the Fourth Proportional to 1,660.22, 2,490.30 and 1,401.88

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Solution

The fourth proportional to 1,660.22, 2,490.30 and 1,401.88 is: 2,102.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.22 : 2,490.30 = 1,401.88 : x
  2. Step 2: Convert to fraction form
    1,660.22/2,490.30 = 1,401.88/x
  3. Step 3: Cross multiply
    1,660.22x = 2,490.30 × 1,401.88
  4. Step 4: Simplify right side
    1,660.22x = 3,491,101.76
  5. Step 5: Solve for x
    x = 3,491,101.76/1,660.22
  6. Step 6: Final answer
    x = 2,102.79

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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.