Home / 7,710.72-11,563.44-2,515.38

Finding the Fourth Proportional to 7,710.72, 11,563.44 and 2,515.38

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Solution

The fourth proportional to 7,710.72, 11,563.44 and 2,515.38 is: 3,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.72 : 11,563.44 = 2,515.38 : x
  2. Step 2: Convert to fraction form
    7,710.72/11,563.44 = 2,515.38/x
  3. Step 3: Cross multiply
    7,710.72x = 11,563.44 × 2,515.38
  4. Step 4: Simplify right side
    7,710.72x = 29,086,445.71
  5. Step 5: Solve for x
    x = 29,086,445.71/7,710.72
  6. Step 6: Final answer
    x = 3,772.21

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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.