Home / 3,145.98-4,721.40-2,173.44

Finding the Fourth Proportional to 3,145.98, 4,721.40 and 2,173.44

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Solution

The fourth proportional to 3,145.98, 4,721.40 and 2,173.44 is: 3,261.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.98 : 4,721.40 = 2,173.44 : x
  2. Step 2: Convert to fraction form
    3,145.98/4,721.40 = 2,173.44/x
  3. Step 3: Cross multiply
    3,145.98x = 4,721.40 × 2,173.44
  4. Step 4: Simplify right side
    3,145.98x = 10,261,679.62
  5. Step 5: Solve for x
    x = 10,261,679.62/3,145.98
  6. Step 6: Final answer
    x = 3,261.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.