Home / 3,171.67-4,376.77-1,774.33

Finding the Fourth Proportional to 3,171.67, 4,376.77 and 1,774.33

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Solution

The fourth proportional to 3,171.67, 4,376.77 and 1,774.33 is: 2,448.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.67 : 4,376.77 = 1,774.33 : x
  2. Step 2: Convert to fraction form
    3,171.67/4,376.77 = 1,774.33/x
  3. Step 3: Cross multiply
    3,171.67x = 4,376.77 × 1,774.33
  4. Step 4: Simplify right side
    3,171.67x = 7,765,834.31
  5. Step 5: Solve for x
    x = 7,765,834.31/3,171.67
  6. Step 6: Final answer
    x = 2,448.50

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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.