Home / 7,143.01-10,721.43-3,447.83

Finding the Fourth Proportional to 7,143.01, 10,721.43 and 3,447.83

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Solution

The fourth proportional to 7,143.01, 10,721.43 and 3,447.83 is: 5,175.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.01 : 10,721.43 = 3,447.83 : x
  2. Step 2: Convert to fraction form
    7,143.01/10,721.43 = 3,447.83/x
  3. Step 3: Cross multiply
    7,143.01x = 10,721.43 × 3,447.83
  4. Step 4: Simplify right side
    7,143.01x = 36,965,668.00
  5. Step 5: Solve for x
    x = 36,965,668.00/7,143.01
  6. Step 6: Final answer
    x = 5,175.08

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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.