Home / 3,201.45-4,418.10-1,785.30

Finding the Fourth Proportional to 3,201.45, 4,418.10 and 1,785.30

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Solution

The fourth proportional to 3,201.45, 4,418.10 and 1,785.30 is: 2,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.45 : 4,418.10 = 1,785.30 : x
  2. Step 2: Convert to fraction form
    3,201.45/4,418.10 = 1,785.30/x
  3. Step 3: Cross multiply
    3,201.45x = 4,418.10 × 1,785.30
  4. Step 4: Simplify right side
    3,201.45x = 7,887,633.93
  5. Step 5: Solve for x
    x = 7,887,633.93/3,201.45
  6. Step 6: Final answer
    x = 2,463.77

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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.