Home / 5,435.47-8,157.29-2,515.82

Finding the Fourth Proportional to 5,435.47, 8,157.29 and 2,515.82

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Solution

The fourth proportional to 5,435.47, 8,157.29 and 2,515.82 is: 3,775.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.47 : 8,157.29 = 2,515.82 : x
  2. Step 2: Convert to fraction form
    5,435.47/8,157.29 = 2,515.82/x
  3. Step 3: Cross multiply
    5,435.47x = 8,157.29 × 2,515.82
  4. Step 4: Simplify right side
    5,435.47x = 20,522,273.33
  5. Step 5: Solve for x
    x = 20,522,273.33/5,435.47
  6. Step 6: Final answer
    x = 3,775.62

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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.