Home / 3,491.40-5,235.44-2,031

Finding the Fourth Proportional to 3,491.40, 5,235.44 and 2,031

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Solution

The fourth proportional to 3,491.40, 5,235.44 and 2,031 is: 3,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.40 : 5,235.44 = 2,031 : x
  2. Step 2: Convert to fraction form
    3,491.40/5,235.44 = 2,031/x
  3. Step 3: Cross multiply
    3,491.40x = 5,235.44 × 2,031
  4. Step 4: Simplify right side
    3,491.40x = 10,633,178.64
  5. Step 5: Solve for x
    x = 10,633,178.64/3,491.40
  6. Step 6: Final answer
    x = 3,045.53

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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.