Home / 5,721.10-7,895.75-3,203.89

Finding the Fourth Proportional to 5,721.10, 7,895.75 and 3,203.89

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Solution

The fourth proportional to 5,721.10, 7,895.75 and 3,203.89 is: 4,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.10 : 7,895.75 = 3,203.89 : x
  2. Step 2: Convert to fraction form
    5,721.10/7,895.75 = 3,203.89/x
  3. Step 3: Cross multiply
    5,721.10x = 7,895.75 × 3,203.89
  4. Step 4: Simplify right side
    5,721.10x = 25,297,078.71
  5. Step 5: Solve for x
    x = 25,297,078.71/5,721.10
  6. Step 6: Final answer
    x = 4,421.72

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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.