Home / 3,910.31-5,396.45-2,317.07

Finding the Fourth Proportional to 3,910.31, 5,396.45 and 2,317.07

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Solution

The fourth proportional to 3,910.31, 5,396.45 and 2,317.07 is: 3,197.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.31 : 5,396.45 = 2,317.07 : x
  2. Step 2: Convert to fraction form
    3,910.31/5,396.45 = 2,317.07/x
  3. Step 3: Cross multiply
    3,910.31x = 5,396.45 × 2,317.07
  4. Step 4: Simplify right side
    3,910.31x = 12,503,913.83
  5. Step 5: Solve for x
    x = 12,503,913.83/3,910.31
  6. Step 6: Final answer
    x = 3,197.68

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1.5x scale

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.