Home / 3,171.38-4,376.50-1,774.13

Finding the Fourth Proportional to 3,171.38, 4,376.50 and 1,774.13

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Solution

The fourth proportional to 3,171.38, 4,376.50 and 1,774.13 is: 2,448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.38 : 4,376.50 = 1,774.13 : x
  2. Step 2: Convert to fraction form
    3,171.38/4,376.50 = 1,774.13/x
  3. Step 3: Cross multiply
    3,171.38x = 4,376.50 × 1,774.13
  4. Step 4: Simplify right side
    3,171.38x = 7,764,453.63
  5. Step 5: Solve for x
    x = 7,764,453.63/3,171.38
  6. Step 6: Final answer
    x = 2,448.29

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Half scale
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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.