Home / 5,419.79-8,123.41-2,491.95

Finding the Fourth Proportional to 5,419.79, 8,123.41 and 2,491.95

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Solution

The fourth proportional to 5,419.79, 8,123.41 and 2,491.95 is: 3,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.79 : 8,123.41 = 2,491.95 : x
  2. Step 2: Convert to fraction form
    5,419.79/8,123.41 = 2,491.95/x
  3. Step 3: Cross multiply
    5,419.79x = 8,123.41 × 2,491.95
  4. Step 4: Simplify right side
    5,419.79x = 20,243,131.55
  5. Step 5: Solve for x
    x = 20,243,131.55/5,419.79
  6. Step 6: Final answer
    x = 3,735.04

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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.