Home / 3,889.09-5,366.96-2,317.15

Finding the Fourth Proportional to 3,889.09, 5,366.96 and 2,317.15

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Solution

The fourth proportional to 3,889.09, 5,366.96 and 2,317.15 is: 3,197.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.09 : 5,366.96 = 2,317.15 : x
  2. Step 2: Convert to fraction form
    3,889.09/5,366.96 = 2,317.15/x
  3. Step 3: Cross multiply
    3,889.09x = 5,366.96 × 2,317.15
  4. Step 4: Simplify right side
    3,889.09x = 12,436,051.36
  5. Step 5: Solve for x
    x = 12,436,051.36/3,889.09
  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.