Home / 3,122.76-4,681.83-1,889.87

Finding the Fourth Proportional to 3,122.76, 4,681.83 and 1,889.87

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Solution

The fourth proportional to 3,122.76, 4,681.83 and 1,889.87 is: 2,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.76 : 4,681.83 = 1,889.87 : x
  2. Step 2: Convert to fraction form
    3,122.76/4,681.83 = 1,889.87/x
  3. Step 3: Cross multiply
    3,122.76x = 4,681.83 × 1,889.87
  4. Step 4: Simplify right side
    3,122.76x = 8,848,050.06
  5. Step 5: Solve for x
    x = 8,848,050.06/3,122.76
  6. Step 6: Final answer
    x = 2,833.41

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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.