Home / 3,182.39-4,391.57-1,785.05

Finding the Fourth Proportional to 3,182.39, 4,391.57 and 1,785.05

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Solution

The fourth proportional to 3,182.39, 4,391.57 and 1,785.05 is: 2,463.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.39 : 4,391.57 = 1,785.05 : x
  2. Step 2: Convert to fraction form
    3,182.39/4,391.57 = 1,785.05/x
  3. Step 3: Cross multiply
    3,182.39x = 4,391.57 × 1,785.05
  4. Step 4: Simplify right side
    3,182.39x = 7,839,141.15
  5. Step 5: Solve for x
    x = 7,839,141.15/3,182.39
  6. Step 6: Final answer
    x = 2,463.29

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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.