Home / 4,213.10-5,817.16-2,721.90

Finding the Fourth Proportional to 4,213.10, 5,817.16 and 2,721.90

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Solution

The fourth proportional to 4,213.10, 5,817.16 and 2,721.90 is: 3,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,213.10 : 5,817.16 = 2,721.90 : x
  2. Step 2: Convert to fraction form
    4,213.10/5,817.16 = 2,721.90/x
  3. Step 3: Cross multiply
    4,213.10x = 5,817.16 × 2,721.90
  4. Step 4: Simplify right side
    4,213.10x = 15,833,727.80
  5. Step 5: Solve for x
    x = 15,833,727.80/4,213.10
  6. Step 6: Final answer
    x = 3,758.21

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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.