Home / 5,435.48-8,157.29-2,515.83

Finding the Fourth Proportional to 5,435.48, 8,157.29 and 2,515.83

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Solution

The fourth proportional to 5,435.48, 8,157.29 and 2,515.83 is: 3,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.48 : 8,157.29 = 2,515.83 : x
  2. Step 2: Convert to fraction form
    5,435.48/8,157.29 = 2,515.83/x
  3. Step 3: Cross multiply
    5,435.48x = 8,157.29 × 2,515.83
  4. Step 4: Simplify right side
    5,435.48x = 20,522,342.32
  5. Step 5: Solve for x
    x = 20,522,342.32/5,435.48
  6. Step 6: Final answer
    x = 3,775.63

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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.