Home / 3,235.07-4,461.68-1,990.91

Finding the Fourth Proportional to 3,235.07, 4,461.68 and 1,990.91

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Solution

The fourth proportional to 3,235.07, 4,461.68 and 1,990.91 is: 2,745.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.07 : 4,461.68 = 1,990.91 : x
  2. Step 2: Convert to fraction form
    3,235.07/4,461.68 = 1,990.91/x
  3. Step 3: Cross multiply
    3,235.07x = 4,461.68 × 1,990.91
  4. Step 4: Simplify right side
    3,235.07x = 8,882,781.02
  5. Step 5: Solve for x
    x = 8,882,781.02/3,235.07
  6. Step 6: Final answer
    x = 2,745.78

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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.