Home / 2,049.40-3,071.40-1,817.20

Finding the Fourth Proportional to 2,049.40, 3,071.40 and 1,817.20

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Solution

The fourth proportional to 2,049.40, 3,071.40 and 1,817.20 is: 2,723.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.40 : 3,071.40 = 1,817.20 : x
  2. Step 2: Convert to fraction form
    2,049.40/3,071.40 = 1,817.20/x
  3. Step 3: Cross multiply
    2,049.40x = 3,071.40 × 1,817.20
  4. Step 4: Simplify right side
    2,049.40x = 5,581,348.08
  5. Step 5: Solve for x
    x = 5,581,348.08/2,049.40
  6. Step 6: Final answer
    x = 2,723.41

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1.5x scale

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.