Home / 3,461.16-5,191.68-1,999.32

Finding the Fourth Proportional to 3,461.16, 5,191.68 and 1,999.32

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Solution

The fourth proportional to 3,461.16, 5,191.68 and 1,999.32 is: 2,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.16 : 5,191.68 = 1,999.32 : x
  2. Step 2: Convert to fraction form
    3,461.16/5,191.68 = 1,999.32/x
  3. Step 3: Cross multiply
    3,461.16x = 5,191.68 × 1,999.32
  4. Step 4: Simplify right side
    3,461.16x = 10,379,829.66
  5. Step 5: Solve for x
    x = 10,379,829.66/3,461.16
  6. Step 6: Final answer
    x = 2,998.95

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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.