Home / 3,916.50-5,405.01-2,587.87

Finding the Fourth Proportional to 3,916.50, 5,405.01 and 2,587.87

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Solution

The fourth proportional to 3,916.50, 5,405.01 and 2,587.87 is: 3,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.50 : 5,405.01 = 2,587.87 : x
  2. Step 2: Convert to fraction form
    3,916.50/5,405.01 = 2,587.87/x
  3. Step 3: Cross multiply
    3,916.50x = 5,405.01 × 2,587.87
  4. Step 4: Simplify right side
    3,916.50x = 13,987,463.23
  5. Step 5: Solve for x
    x = 13,987,463.23/3,916.50
  6. Step 6: Final answer
    x = 3,571.42

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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.