Home / 3,985.81-5,979.62-2,232.56

Finding the Fourth Proportional to 3,985.81, 5,979.62 and 2,232.56

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Solution

The fourth proportional to 3,985.81, 5,979.62 and 2,232.56 is: 3,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.81 : 5,979.62 = 2,232.56 : x
  2. Step 2: Convert to fraction form
    3,985.81/5,979.62 = 2,232.56/x
  3. Step 3: Cross multiply
    3,985.81x = 5,979.62 × 2,232.56
  4. Step 4: Simplify right side
    3,985.81x = 13,349,880.96
  5. Step 5: Solve for x
    x = 13,349,880.96/3,985.81
  6. Step 6: Final answer
    x = 3,349.35

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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.