Home / 3,916.07-5,400.51-3,122.03

Finding the Fourth Proportional to 3,916.07, 5,400.51 and 3,122.03

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Solution

The fourth proportional to 3,916.07, 5,400.51 and 3,122.03 is: 4,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.07 : 5,400.51 = 3,122.03 : x
  2. Step 2: Convert to fraction form
    3,916.07/5,400.51 = 3,122.03/x
  3. Step 3: Cross multiply
    3,916.07x = 5,400.51 × 3,122.03
  4. Step 4: Simplify right side
    3,916.07x = 16,860,527.23
  5. Step 5: Solve for x
    x = 16,860,527.23/3,916.07
  6. Step 6: Final answer
    x = 4,305.48

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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.