Home / 3,941.78-5,916.40-2,898.61

Finding the Fourth Proportional to 3,941.78, 5,916.40 and 2,898.61

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Solution

The fourth proportional to 3,941.78, 5,916.40 and 2,898.61 is: 4,350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.78 : 5,916.40 = 2,898.61 : x
  2. Step 2: Convert to fraction form
    3,941.78/5,916.40 = 2,898.61/x
  3. Step 3: Cross multiply
    3,941.78x = 5,916.40 × 2,898.61
  4. Step 4: Simplify right side
    3,941.78x = 17,149,306.62
  5. Step 5: Solve for x
    x = 17,149,306.62/3,941.78
  6. Step 6: Final answer
    x = 4,350.65

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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.