Home / 2,405.60-3,609.76-1,310.04

Finding the Fourth Proportional to 2,405.60, 3,609.76 and 1,310.04

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Solution

The fourth proportional to 2,405.60, 3,609.76 and 1,310.04 is: 1,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.60 : 3,609.76 = 1,310.04 : x
  2. Step 2: Convert to fraction form
    2,405.60/3,609.76 = 1,310.04/x
  3. Step 3: Cross multiply
    2,405.60x = 3,609.76 × 1,310.04
  4. Step 4: Simplify right side
    2,405.60x = 4,728,929.99
  5. Step 5: Solve for x
    x = 4,728,929.99/2,405.60
  6. Step 6: Final answer
    x = 1,965.80

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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.