Home / 3,910.31-5,860-2,809.52

Finding the Fourth Proportional to 3,910.31, 5,860 and 2,809.52

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Solution

The fourth proportional to 3,910.31, 5,860 and 2,809.52 is: 4,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.31 : 5,860 = 2,809.52 : x
  2. Step 2: Convert to fraction form
    3,910.31/5,860 = 2,809.52/x
  3. Step 3: Cross multiply
    3,910.31x = 5,860 × 2,809.52
  4. Step 4: Simplify right side
    3,910.31x = 16,463,787.20
  5. Step 5: Solve for x
    x = 16,463,787.20/3,910.31
  6. Step 6: Final answer
    x = 4,210.35

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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.