Home / 3,488.72-4,813.78-2,072.03

Finding the Fourth Proportional to 3,488.72, 4,813.78 and 2,072.03

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Solution

The fourth proportional to 3,488.72, 4,813.78 and 2,072.03 is: 2,859.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.72 : 4,813.78 = 2,072.03 : x
  2. Step 2: Convert to fraction form
    3,488.72/4,813.78 = 2,072.03/x
  3. Step 3: Cross multiply
    3,488.72x = 4,813.78 × 2,072.03
  4. Step 4: Simplify right side
    3,488.72x = 9,974,296.57
  5. Step 5: Solve for x
    x = 9,974,296.57/3,488.72
  6. Step 6: Final answer
    x = 2,859.01

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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.