Home / 3,205.03-4,423.10-1,807.75

Finding the Fourth Proportional to 3,205.03, 4,423.10 and 1,807.75

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Solution

The fourth proportional to 3,205.03, 4,423.10 and 1,807.75 is: 2,494.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.03 : 4,423.10 = 1,807.75 : x
  2. Step 2: Convert to fraction form
    3,205.03/4,423.10 = 1,807.75/x
  3. Step 3: Cross multiply
    3,205.03x = 4,423.10 × 1,807.75
  4. Step 4: Simplify right side
    3,205.03x = 7,995,859.03
  5. Step 5: Solve for x
    x = 7,995,859.03/3,205.03
  6. Step 6: Final answer
    x = 2,494.78

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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.