Home / 3,171.81-4,376.72-1,845.30

Finding the Fourth Proportional to 3,171.81, 4,376.72 and 1,845.30

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Solution

The fourth proportional to 3,171.81, 4,376.72 and 1,845.30 is: 2,546.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.81 : 4,376.72 = 1,845.30 : x
  2. Step 2: Convert to fraction form
    3,171.81/4,376.72 = 1,845.30/x
  3. Step 3: Cross multiply
    3,171.81x = 4,376.72 × 1,845.30
  4. Step 4: Simplify right side
    3,171.81x = 8,076,352.19
  5. Step 5: Solve for x
    x = 8,076,352.19/3,171.81
  6. Step 6: Final answer
    x = 2,546.29

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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.