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Finding the Fourth Proportional to 2,405.95, 3,609.54 and 674.58

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Solution

The fourth proportional to 2,405.95, 3,609.54 and 674.58 is: 1,012.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.95 : 3,609.54 = 674.58 : x
  2. Step 2: Convert to fraction form
    2,405.95/3,609.54 = 674.58/x
  3. Step 3: Cross multiply
    2,405.95x = 3,609.54 × 674.58
  4. Step 4: Simplify right side
    2,405.95x = 2,434,914.83
  5. Step 5: Solve for x
    x = 2,434,914.83/2,405.95
  6. Step 6: Final answer
    x = 1,012.04

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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.