Home / 1,729.50-2,380.95-1,618.62

Finding the Fourth Proportional to 1,729.50, 2,380.95 and 1,618.62

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Solution

The fourth proportional to 1,729.50, 2,380.95 and 1,618.62 is: 2,228.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.50 : 2,380.95 = 1,618.62 : x
  2. Step 2: Convert to fraction form
    1,729.50/2,380.95 = 1,618.62/x
  3. Step 3: Cross multiply
    1,729.50x = 2,380.95 × 1,618.62
  4. Step 4: Simplify right side
    1,729.50x = 3,853,853.29
  5. Step 5: Solve for x
    x = 3,853,853.29/1,729.50
  6. Step 6: Final answer
    x = 2,228.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.