Home / 5,351.65-8,029.78-2,885.90

Finding the Fourth Proportional to 5,351.65, 8,029.78 and 2,885.90

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Solution

The fourth proportional to 5,351.65, 8,029.78 and 2,885.90 is: 4,330.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.65 : 8,029.78 = 2,885.90 : x
  2. Step 2: Convert to fraction form
    5,351.65/8,029.78 = 2,885.90/x
  3. Step 3: Cross multiply
    5,351.65x = 8,029.78 × 2,885.90
  4. Step 4: Simplify right side
    5,351.65x = 23,173,142.10
  5. Step 5: Solve for x
    x = 23,173,142.10/5,351.65
  6. Step 6: Final answer
    x = 4,330.09

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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.