Home / 3,205.64-4,423.21-1,879.38

Finding the Fourth Proportional to 3,205.64, 4,423.21 and 1,879.38

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Solution

The fourth proportional to 3,205.64, 4,423.21 and 1,879.38 is: 2,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.64 : 4,423.21 = 1,879.38 : x
  2. Step 2: Convert to fraction form
    3,205.64/4,423.21 = 1,879.38/x
  3. Step 3: Cross multiply
    3,205.64x = 4,423.21 × 1,879.38
  4. Step 4: Simplify right side
    3,205.64x = 8,312,887.71
  5. Step 5: Solve for x
    x = 8,312,887.71/3,205.64
  6. Step 6: Final answer
    x = 2,593.20

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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.