Home / 7,220.64-10,834.32-3,929.82

Finding the Fourth Proportional to 7,220.64, 10,834.32 and 3,929.82

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Solution

The fourth proportional to 7,220.64, 10,834.32 and 3,929.82 is: 5,896.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.64 : 10,834.32 = 3,929.82 : x
  2. Step 2: Convert to fraction form
    7,220.64/10,834.32 = 3,929.82/x
  3. Step 3: Cross multiply
    7,220.64x = 10,834.32 × 3,929.82
  4. Step 4: Simplify right side
    7,220.64x = 42,576,927.42
  5. Step 5: Solve for x
    x = 42,576,927.42/7,220.64
  6. Step 6: Final answer
    x = 5,896.56

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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.