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Finding the Fourth Proportional to 3,995.60, 5,992.02 and 1,917.95

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Solution

The fourth proportional to 3,995.60, 5,992.02 and 1,917.95 is: 2,876.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.60 : 5,992.02 = 1,917.95 : x
  2. Step 2: Convert to fraction form
    3,995.60/5,992.02 = 1,917.95/x
  3. Step 3: Cross multiply
    3,995.60x = 5,992.02 × 1,917.95
  4. Step 4: Simplify right side
    3,995.60x = 11,492,364.80
  5. Step 5: Solve for x
    x = 11,492,364.80/3,995.60
  6. Step 6: Final answer
    x = 2,876.26

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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.