Home / 3,395.20-5,092.90-1,615.80

Finding the Fourth Proportional to 3,395.20, 5,092.90 and 1,615.80

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Solution

The fourth proportional to 3,395.20, 5,092.90 and 1,615.80 is: 2,423.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.20 : 5,092.90 = 1,615.80 : x
  2. Step 2: Convert to fraction form
    3,395.20/5,092.90 = 1,615.80/x
  3. Step 3: Cross multiply
    3,395.20x = 5,092.90 × 1,615.80
  4. Step 4: Simplify right side
    3,395.20x = 8,229,107.82
  5. Step 5: Solve for x
    x = 8,229,107.82/3,395.20
  6. Step 6: Final answer
    x = 2,423.75

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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.