Home / 3,171.30-4,376.39-1,774.06

Finding the Fourth Proportional to 3,171.30, 4,376.39 and 1,774.06

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Solution

The fourth proportional to 3,171.30, 4,376.39 and 1,774.06 is: 2,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.30 : 4,376.39 = 1,774.06 : x
  2. Step 2: Convert to fraction form
    3,171.30/4,376.39 = 1,774.06/x
  3. Step 3: Cross multiply
    3,171.30x = 4,376.39 × 1,774.06
  4. Step 4: Simplify right side
    3,171.30x = 7,763,978.44
  5. Step 5: Solve for x
    x = 7,763,978.44/3,171.30
  6. Step 6: Final answer
    x = 2,448.20

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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.