Home / 3,123.76-4,683.33-1,890.87

Finding the Fourth Proportional to 3,123.76, 4,683.33 and 1,890.87

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Solution

The fourth proportional to 3,123.76, 4,683.33 and 1,890.87 is: 2,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.76 : 4,683.33 = 1,890.87 : x
  2. Step 2: Convert to fraction form
    3,123.76/4,683.33 = 1,890.87/x
  3. Step 3: Cross multiply
    3,123.76x = 4,683.33 × 1,890.87
  4. Step 4: Simplify right side
    3,123.76x = 8,855,568.20
  5. Step 5: Solve for x
    x = 8,855,568.20/3,123.76
  6. Step 6: Final answer
    x = 2,834.91

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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.