Home / 3,171.75-4,377.03-1,774.50

Finding the Fourth Proportional to 3,171.75, 4,377.03 and 1,774.50

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Solution

The fourth proportional to 3,171.75, 4,377.03 and 1,774.50 is: 2,448.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.75 : 4,377.03 = 1,774.50 : x
  2. Step 2: Convert to fraction form
    3,171.75/4,377.03 = 1,774.50/x
  3. Step 3: Cross multiply
    3,171.75x = 4,377.03 × 1,774.50
  4. Step 4: Simplify right side
    3,171.75x = 7,767,039.74
  5. Step 5: Solve for x
    x = 7,767,039.74/3,171.75
  6. Step 6: Final answer
    x = 2,448.82

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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.