Home / 3,614.80-5,409.40-3,307.60

Finding the Fourth Proportional to 3,614.80, 5,409.40 and 3,307.60

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Solution

The fourth proportional to 3,614.80, 5,409.40 and 3,307.60 is: 4,949.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.80 : 5,409.40 = 3,307.60 : x
  2. Step 2: Convert to fraction form
    3,614.80/5,409.40 = 3,307.60/x
  3. Step 3: Cross multiply
    3,614.80x = 5,409.40 × 3,307.60
  4. Step 4: Simplify right side
    3,614.80x = 17,892,131.44
  5. Step 5: Solve for x
    x = 17,892,131.44/3,614.80
  6. Step 6: Final answer
    x = 4,949.69

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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.