Home / 5,099.39-7,649.81-1,811.70

Finding the Fourth Proportional to 5,099.39, 7,649.81 and 1,811.70

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Solution

The fourth proportional to 5,099.39, 7,649.81 and 1,811.70 is: 2,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.39 : 7,649.81 = 1,811.70 : x
  2. Step 2: Convert to fraction form
    5,099.39/7,649.81 = 1,811.70/x
  3. Step 3: Cross multiply
    5,099.39x = 7,649.81 × 1,811.70
  4. Step 4: Simplify right side
    5,099.39x = 13,859,158.51
  5. Step 5: Solve for x
    x = 13,859,158.51/5,099.39
  6. Step 6: Final answer
    x = 2,717.81

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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.