Home / 2,279.40-3,419.10-1,623.30

Finding the Fourth Proportional to 2,279.40, 3,419.10 and 1,623.30

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Solution

The fourth proportional to 2,279.40, 3,419.10 and 1,623.30 is: 2,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.40 : 3,419.10 = 1,623.30 : x
  2. Step 2: Convert to fraction form
    2,279.40/3,419.10 = 1,623.30/x
  3. Step 3: Cross multiply
    2,279.40x = 3,419.10 × 1,623.30
  4. Step 4: Simplify right side
    2,279.40x = 5,550,225.03
  5. Step 5: Solve for x
    x = 5,550,225.03/2,279.40
  6. Step 6: Final answer
    x = 2,434.95

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Similar ratio
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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.