Home / 4,916.24-7,371.94-2,142.40

Finding the Fourth Proportional to 4,916.24, 7,371.94 and 2,142.40

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Solution

The fourth proportional to 4,916.24, 7,371.94 and 2,142.40 is: 3,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.24 : 7,371.94 = 2,142.40 : x
  2. Step 2: Convert to fraction form
    4,916.24/7,371.94 = 2,142.40/x
  3. Step 3: Cross multiply
    4,916.24x = 7,371.94 × 2,142.40
  4. Step 4: Simplify right side
    4,916.24x = 15,793,644.26
  5. Step 5: Solve for x
    x = 15,793,644.26/4,916.24
  6. Step 6: Final answer
    x = 3,212.55

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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.