Home / 7,214.72-10,822.64-2,020.64

Finding the Fourth Proportional to 7,214.72, 10,822.64 and 2,020.64

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Solution

The fourth proportional to 7,214.72, 10,822.64 and 2,020.64 is: 3,031.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.72 : 10,822.64 = 2,020.64 : x
  2. Step 2: Convert to fraction form
    7,214.72/10,822.64 = 2,020.64/x
  3. Step 3: Cross multiply
    7,214.72x = 10,822.64 × 2,020.64
  4. Step 4: Simplify right side
    7,214.72x = 21,868,659.29
  5. Step 5: Solve for x
    x = 21,868,659.29/7,214.72
  6. Step 6: Final answer
    x = 3,031.12

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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.