Home / 2,382.41-3,286.98-1,386.99

Finding the Fourth Proportional to 2,382.41, 3,286.98 and 1,386.99

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Solution

The fourth proportional to 2,382.41, 3,286.98 and 1,386.99 is: 1,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.41 : 3,286.98 = 1,386.99 : x
  2. Step 2: Convert to fraction form
    2,382.41/3,286.98 = 1,386.99/x
  3. Step 3: Cross multiply
    2,382.41x = 3,286.98 × 1,386.99
  4. Step 4: Simplify right side
    2,382.41x = 4,559,008.39
  5. Step 5: Solve for x
    x = 4,559,008.39/2,382.41
  6. Step 6: Final answer
    x = 1,913.61

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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.