Home / 5,287.90-7,919.22-2,942.08

Finding the Fourth Proportional to 5,287.90, 7,919.22 and 2,942.08

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Solution

The fourth proportional to 5,287.90, 7,919.22 and 2,942.08 is: 4,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.90 : 7,919.22 = 2,942.08 : x
  2. Step 2: Convert to fraction form
    5,287.90/7,919.22 = 2,942.08/x
  3. Step 3: Cross multiply
    5,287.90x = 7,919.22 × 2,942.08
  4. Step 4: Simplify right side
    5,287.90x = 23,298,978.78
  5. Step 5: Solve for x
    x = 23,298,978.78/5,287.90
  6. Step 6: Final answer
    x = 4,406.09

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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.