Home / 3,916.28-5,403.80-2,589.50

Finding the Fourth Proportional to 3,916.28, 5,403.80 and 2,589.50

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Solution

The fourth proportional to 3,916.28, 5,403.80 and 2,589.50 is: 3,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.28 : 5,403.80 = 2,589.50 : x
  2. Step 2: Convert to fraction form
    3,916.28/5,403.80 = 2,589.50/x
  3. Step 3: Cross multiply
    3,916.28x = 5,403.80 × 2,589.50
  4. Step 4: Simplify right side
    3,916.28x = 13,993,160.08
  5. Step 5: Solve for x
    x = 13,993,160.08/3,916.28
  6. Step 6: Final answer
    x = 3,573.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.