Home / 3,818.74-5,729.95-2,087.32

Finding the Fourth Proportional to 3,818.74, 5,729.95 and 2,087.32

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Solution

The fourth proportional to 3,818.74, 5,729.95 and 2,087.32 is: 3,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.74 : 5,729.95 = 2,087.32 : x
  2. Step 2: Convert to fraction form
    3,818.74/5,729.95 = 2,087.32/x
  3. Step 3: Cross multiply
    3,818.74x = 5,729.95 × 2,087.32
  4. Step 4: Simplify right side
    3,818.74x = 11,960,239.23
  5. Step 5: Solve for x
    x = 11,960,239.23/3,818.74
  6. Step 6: Final answer
    x = 3,131.99

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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.