Home / 3,610.80-5,416.20-3,092.40

Finding the Fourth Proportional to 3,610.80, 5,416.20 and 3,092.40

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Solution

The fourth proportional to 3,610.80, 5,416.20 and 3,092.40 is: 4,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.80 : 5,416.20 = 3,092.40 : x
  2. Step 2: Convert to fraction form
    3,610.80/5,416.20 = 3,092.40/x
  3. Step 3: Cross multiply
    3,610.80x = 5,416.20 × 3,092.40
  4. Step 4: Simplify right side
    3,610.80x = 16,749,056.88
  5. Step 5: Solve for x
    x = 16,749,056.88/3,610.80
  6. Step 6: Final answer
    x = 4,638.60

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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.