Home / 5,911.94-8,161.81-3,925.21

Finding the Fourth Proportional to 5,911.94, 8,161.81 and 3,925.21

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Solution

The fourth proportional to 5,911.94, 8,161.81 and 3,925.21 is: 5,419.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.94 : 8,161.81 = 3,925.21 : x
  2. Step 2: Convert to fraction form
    5,911.94/8,161.81 = 3,925.21/x
  3. Step 3: Cross multiply
    5,911.94x = 8,161.81 × 3,925.21
  4. Step 4: Simplify right side
    5,911.94x = 32,036,788.01
  5. Step 5: Solve for x
    x = 32,036,788.01/5,911.94
  6. Step 6: Final answer
    x = 5,419.00

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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.