Home / 5,099.38-7,649.67-1,812.80

Finding the Fourth Proportional to 5,099.38, 7,649.67 and 1,812.80

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Solution

The fourth proportional to 5,099.38, 7,649.67 and 1,812.80 is: 2,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.38 : 7,649.67 = 1,812.80 : x
  2. Step 2: Convert to fraction form
    5,099.38/7,649.67 = 1,812.80/x
  3. Step 3: Cross multiply
    5,099.38x = 7,649.67 × 1,812.80
  4. Step 4: Simplify right side
    5,099.38x = 13,867,347.70
  5. Step 5: Solve for x
    x = 13,867,347.70/5,099.38
  6. Step 6: Final answer
    x = 2,719.42

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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.