Home / 3,465.35-5,198.79-1,615.50

Finding the Fourth Proportional to 3,465.35, 5,198.79 and 1,615.50

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Solution

The fourth proportional to 3,465.35, 5,198.79 and 1,615.50 is: 2,423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.35 : 5,198.79 = 1,615.50 : x
  2. Step 2: Convert to fraction form
    3,465.35/5,198.79 = 1,615.50/x
  3. Step 3: Cross multiply
    3,465.35x = 5,198.79 × 1,615.50
  4. Step 4: Simplify right side
    3,465.35x = 8,398,645.25
  5. Step 5: Solve for x
    x = 8,398,645.25/3,465.35
  6. Step 6: Final answer
    x = 2,423.61

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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.