Home / 2,405.40-3,609.30-1,366.20

Finding the Fourth Proportional to 2,405.40, 3,609.30 and 1,366.20

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Solution

The fourth proportional to 2,405.40, 3,609.30 and 1,366.20 is: 2,049.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.40 : 3,609.30 = 1,366.20 : x
  2. Step 2: Convert to fraction form
    2,405.40/3,609.30 = 1,366.20/x
  3. Step 3: Cross multiply
    2,405.40x = 3,609.30 × 1,366.20
  4. Step 4: Simplify right side
    2,405.40x = 4,931,025.66
  5. Step 5: Solve for x
    x = 4,931,025.66/2,405.40
  6. Step 6: Final answer
    x = 2,049.98

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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.