Home / 3,820.41-5,271.39-2,759.79

Finding the Fourth Proportional to 3,820.41, 5,271.39 and 2,759.79

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Solution

The fourth proportional to 3,820.41, 5,271.39 and 2,759.79 is: 3,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.41 : 5,271.39 = 2,759.79 : x
  2. Step 2: Convert to fraction form
    3,820.41/5,271.39 = 2,759.79/x
  3. Step 3: Cross multiply
    3,820.41x = 5,271.39 × 2,759.79
  4. Step 4: Simplify right side
    3,820.41x = 14,547,929.41
  5. Step 5: Solve for x
    x = 14,547,929.41/3,820.41
  6. Step 6: Final answer
    x = 3,807.95

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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.