Home / 3,190.75-4,403.29-1,774.55

Finding the Fourth Proportional to 3,190.75, 4,403.29 and 1,774.55

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Solution

The fourth proportional to 3,190.75, 4,403.29 and 1,774.55 is: 2,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.75 : 4,403.29 = 1,774.55 : x
  2. Step 2: Convert to fraction form
    3,190.75/4,403.29 = 1,774.55/x
  3. Step 3: Cross multiply
    3,190.75x = 4,403.29 × 1,774.55
  4. Step 4: Simplify right side
    3,190.75x = 7,813,858.27
  5. Step 5: Solve for x
    x = 7,813,858.27/3,190.75
  6. Step 6: Final answer
    x = 2,448.91

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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.