Home / 3,519.06-4,854.78-2,121

Finding the Fourth Proportional to 3,519.06, 4,854.78 and 2,121

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Solution

The fourth proportional to 3,519.06, 4,854.78 and 2,121 is: 2,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.06 : 4,854.78 = 2,121 : x
  2. Step 2: Convert to fraction form
    3,519.06/4,854.78 = 2,121/x
  3. Step 3: Cross multiply
    3,519.06x = 4,854.78 × 2,121
  4. Step 4: Simplify right side
    3,519.06x = 10,296,988.38
  5. Step 5: Solve for x
    x = 10,296,988.38/3,519.06
  6. Step 6: Final answer
    x = 2,926.06

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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.