Home / 3,985.71-5,979.15-2,036.85

Finding the Fourth Proportional to 3,985.71, 5,979.15 and 2,036.85

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Solution

The fourth proportional to 3,985.71, 5,979.15 and 2,036.85 is: 3,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.71 : 5,979.15 = 2,036.85 : x
  2. Step 2: Convert to fraction form
    3,985.71/5,979.15 = 2,036.85/x
  3. Step 3: Cross multiply
    3,985.71x = 5,979.15 × 2,036.85
  4. Step 4: Simplify right side
    3,985.71x = 12,178,631.68
  5. Step 5: Solve for x
    x = 12,178,631.68/3,985.71
  6. Step 6: Final answer
    x = 3,055.57

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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.