Home / 7,021.16-10,531.70-2,861.09

Finding the Fourth Proportional to 7,021.16, 10,531.70 and 2,861.09

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Solution

The fourth proportional to 7,021.16, 10,531.70 and 2,861.09 is: 4,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.16 : 10,531.70 = 2,861.09 : x
  2. Step 2: Convert to fraction form
    7,021.16/10,531.70 = 2,861.09/x
  3. Step 3: Cross multiply
    7,021.16x = 10,531.70 × 2,861.09
  4. Step 4: Simplify right side
    7,021.16x = 30,132,127.25
  5. Step 5: Solve for x
    x = 30,132,127.25/7,021.16
  6. Step 6: Final answer
    x = 4,291.62

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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.