Home / 3,175.32-4,379.25-2,380.50

Finding the Fourth Proportional to 3,175.32, 4,379.25 and 2,380.50

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Solution

The fourth proportional to 3,175.32, 4,379.25 and 2,380.50 is: 3,283.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.32 : 4,379.25 = 2,380.50 : x
  2. Step 2: Convert to fraction form
    3,175.32/4,379.25 = 2,380.50/x
  3. Step 3: Cross multiply
    3,175.32x = 4,379.25 × 2,380.50
  4. Step 4: Simplify right side
    3,175.32x = 10,424,804.63
  5. Step 5: Solve for x
    x = 10,424,804.63/3,175.32
  6. Step 6: Final answer
    x = 3,283.07

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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.