Home / 3,612.45-5,412.60-2,992.80

Finding the Fourth Proportional to 3,612.45, 5,412.60 and 2,992.80

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Solution

The fourth proportional to 3,612.45, 5,412.60 and 2,992.80 is: 4,484.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.45 : 5,412.60 = 2,992.80 : x
  2. Step 2: Convert to fraction form
    3,612.45/5,412.60 = 2,992.80/x
  3. Step 3: Cross multiply
    3,612.45x = 5,412.60 × 2,992.80
  4. Step 4: Simplify right side
    3,612.45x = 16,198,829.28
  5. Step 5: Solve for x
    x = 16,198,829.28/3,612.45
  6. Step 6: Final answer
    x = 4,484.17

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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.