Home / 5,099.75-7,649.63-1,812.84

Finding the Fourth Proportional to 5,099.75, 7,649.63 and 1,812.84

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Solution

The fourth proportional to 5,099.75, 7,649.63 and 1,812.84 is: 2,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.75 : 7,649.63 = 1,812.84 : x
  2. Step 2: Convert to fraction form
    5,099.75/7,649.63 = 1,812.84/x
  3. Step 3: Cross multiply
    5,099.75x = 7,649.63 × 1,812.84
  4. Step 4: Simplify right side
    5,099.75x = 13,867,546.19
  5. Step 5: Solve for x
    x = 13,867,546.19/5,099.75
  6. Step 6: Final answer
    x = 2,719.26

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1.5x scale

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.