Home / 2,961.50-4,086.77-1,635.12

Finding the Fourth Proportional to 2,961.50, 4,086.77 and 1,635.12

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Solution

The fourth proportional to 2,961.50, 4,086.77 and 1,635.12 is: 2,256.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.50 : 4,086.77 = 1,635.12 : x
  2. Step 2: Convert to fraction form
    2,961.50/4,086.77 = 1,635.12/x
  3. Step 3: Cross multiply
    2,961.50x = 4,086.77 × 1,635.12
  4. Step 4: Simplify right side
    2,961.50x = 6,682,351.19
  5. Step 5: Solve for x
    x = 6,682,351.19/2,961.50
  6. Step 6: Final answer
    x = 2,256.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.