Home / 1,660.31-2,492.09-1,355.75

Finding the Fourth Proportional to 1,660.31, 2,492.09 and 1,355.75

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Solution

The fourth proportional to 1,660.31, 2,492.09 and 1,355.75 is: 2,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.31 : 2,492.09 = 1,355.75 : x
  2. Step 2: Convert to fraction form
    1,660.31/2,492.09 = 1,355.75/x
  3. Step 3: Cross multiply
    1,660.31x = 2,492.09 × 1,355.75
  4. Step 4: Simplify right side
    1,660.31x = 3,378,631.78
  5. Step 5: Solve for x
    x = 3,378,631.78/1,660.31
  6. Step 6: Final answer
    x = 2,034.95

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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.